Rare Birds in Japan
seen during FONT Birding Tours

Flying Japanese Crane, or
"Tancho",
(photographed during FONT Feb '05 Japan Tour)
Codes:
(JPe): endemic to Japan
(JPeb): endemic Japanese breeder
Upcoming FONT Japan Birding & Nature Tours
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Japan Photo Gallery II (gulls
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List
of Birds during FONT Japan Tours
THERE HAVE BEEN 30 FONT BIRDING & NATURE TOURS IN JAPAN.
The following list & notes compiled & written by Armas Hill, who has led
FONT tour in Japan for about 18 years, and has birded in Japan for over 2
decades. Classifications are those designated by Birdlife
International. The criteria for classifications follows the listing.
Japanese islands where the birds have been seen
during FONT tours are noted in
the listing below.
Species classified as:
Category #1: CRITICALLY THREATENED:
Siberian Crane ______ Kyushu (during winter
tours in 1997, 2000, 2001,& 2004)
This species is a rarity in Japan. On occasion (as during the 4 years noted
above), a single individual winters at Arasaki, on the southern Japanese island
of Kyushu, with the combined approximately 10,000 Hooded & White-naped
Cranes.
The Siberian Crane is now classified as "critical" because it is
expected to undergo an extremely rapid decline in the near future, primarily as
a result of the destruction and degradation of wetlands in the areas of its
migration and wintering grounds. The wintering site, holding 95% of the
population, in China, is threatened by changes that will come about with the
Three Gorges Dam project.
The total population of the species is between 2,500 & 3,000, making it, at
this time, the 3rd rarest crane in the world. (More information in
FURTHER NOTES following this list.)

Okinawa (or Pryer's) Woodpecker
______ Okinawa
(spring & winter tours) (JPe)
Sapheopipo noguchii
Considered close to extinction in the 1930's. Population estimates since
1950 have ranged from 40 to 200 birds, with the most recent estimate being of 90
birds. This species has been found during all FONT tours in Okinawa.
Amami Thrush ______ Amami
(spring & winter
tours) (JPe)
Zoothera major
In the mid-1990's, the breeding population was estimated as being about
60 birds. The similar White's Thrush is smaller. The Amami Thrush has a cheerful
song, delivered mostly in the morning, and similar to that of the Siberian
Thrush, another Zoothera species. The White's Thrush has a more mournful song
delivered mostly at night. The Amami Thrush, found only on that island, is
confined to mature (over 60 years old), subtropical, evergreen forest, at an
altitude of 100 to 400 meters. It is a shy bird.
Category #2: ENDANGERED:
Oriental Stork ______ Kyushu
(during 2 winter
tours, very rare in Japan)
Ciconia boyciana
With a total population of about 2,500 birds, this species breeds only in
the Amur and Ussuri basins (along the border of Siberia and China), and winters,
mainly, in eastern & southern China.
Black-faced Spoonbill ______ Honshu,
Kyushu, Amami, Okinawa
(winter tours)
Platalea minor
The population of this species is estimated as being about only 700 birds. It
breeds on small islands off the west coast of Korea, and in one province of
eastern China. It winters from southern Japan south to Taiwan, Hong Kong
(China), and Vietnam.

Red-crowned
(or the "Japanese", or "Manchurian") Crane ______ Hokkaido ("Japanese Crane") (spring & winter tours), Kyushu ("Manchurian Crane") (during 1 winter tour)

Okinawa Rail ______ Okinawa
(spring & winter tours)
(JPe)
Gallirallus okinawae
This species, found only in a portion of northern Okinawa, became known to
science only as recently as 1981. Its discovery that year was a great surprise
to ornithologists. No new bird had been discovered in Japan since 1922 (and that
was a nocturnal storm-petrel). Local people, however, in the forested Yambaru
region of Okinawa had in fact known of the bird, calling it "Agachi"
or "Yamdoi".
The Okinawa Rail has commonly been believed to be flightless, but that may not
be entirely so. Some birds sleep at night in trees, as high as 11 meters above
the ground. Others (some adults and all chicks) have been found to sleep on the
ground. While it's normally very difficult to see this usually shy bird in the
forest, it can be easy to hear one. The call carries far. Peak singing is around
sunset and sunrise. Pairs duet.
The population of the Okinawa Rail is estimated at about 1800 birds, or 900
pairs.

Blakiston's Fish Owl ______ Hokkaido
(where it has been
seen during all FONT late-fall & winter tours; there have been 19 such tours)
Bubo

Blakiston's Fish-Owl, Hokkaido, Japan
"Owston's
(or
Amami)
Woodpecker" ______
Amami (spring & winter
tours) (JPe)
Dendrocopos
(formerly
Picoides)
(leucotos) owstoni
Short-tailed
(or
Steller's)
Albatross ______
pelagically,
off Honshu (during spring & winter tours
seen twice, both times in 2000 - early January & early June ) (JPeb)
Phoebastria albatrus
This albatross has a very small population, and a breeding range limited to 2
Japanese islands. Recent conservation efforts have resulted in a gradual
population increase. (More information in
FURTHER NOTES following this list.)
Black-footed Albatross ______ pelagically, off Honshu
(spring & winter tours)
Phoebastria nigripes
Breeds on the northwestern Hawaiian Islands (USA) and 3 outlying islands of
Japan. Colonies have disappeared on other Pacific islands. There was a near 20%
decline between 1995 & 2000.
Baikal Teal ______ Honshu, Kyushu
(winter tours)
Anas formosa
This duck has had, in recent years, a rapidly declining population. In the
early 20th Century, it was one of the most numerous ducks in eastern Asia, and
flocks of several thousand were regularly reported. Since the 1970's, there has
been a significant decline.
At least in part, this decline is thought to be due to excessive shooting or
netting in the bird's wintering range and along its migration routes. The bird
has had a habit of gathering in large dense flocks, and making predictable daily
movements. There's an account of about 50,000 birds being netted during 20 days
by 3 hunters in Japan in 1947.
In South Korea, in the early 1990's, there were, at 2 locations, about 20,000
and 30,000 birds.
In Japan, during the last 50 years, the Baikal Teal has decreased from a status
of abundant in the winter to that of being
uncommon.
The species breeds in river basins in northern & northeastern Siberia. The
male is an exquisitely-patterned bird.

A drake Baikal Teal
(photograph by Koji Tagi)
Baer's Pochard ______ Honshu
(during 1 winter tour, in 1998)
Aythya baeri
This poorly known species has a small, declining population. Estimates are
about 10,000 individuals. Most occur on mainland eastern Asia, breeding in
southeastern Siberia and northeastern China, and wintering in China, Korea,
Myanmar (has been known as Burma), and eastern India.
Scaly-sided
(or
Chinese)
Merganser ______ Honshu
(during 2 winter tours)
Mergus squamatus
This species has a small and declining population. Its total population is estimated as between
3,500 and 4,500 individuals. Most breed in southeastern Siberia, in Khabarovsk
and Primorye. The breeding
population in China (in the northeastern Manchurian region of Heilungkiang) is estimated as 200 to 250 pairs, and
it is declining.
So, the Scaly-sided Merganser is a rare bird. And, overall, little is known
about it. The species is closely related to both the Common Merganser (or
Goosander) and the Red-breasted Merganser, with Its range overlapping with both
even during the breeding season.
The distribution within the nesting range is sparse, along fast-flowing rivers.
Territorial pairs occupy at least 4-kilometer stretches of rivers. Birds are
normally found in pairs, or in small family parties. If in groups, outside the
breeding season, the groups are small. The birds are shy and wary. Their flight
is fast and low.
Nests are in holes of old riverside trees. After nesting, the extent of
migration is uncertain. Some birds seem to go only to the lower reaches of the
rivers along which they bred (particularly those that flow from the eastern side
of the Sikote range in Siberia). Others have been recorded considerably further
away. There are old records of wintering birds in southwestern China. Also, the
bird has been recorded elsewhere in China (particularly in the valley of the
Yangtze), and in Korea, and more rarely in Japan, northern Vietnam, and northern
Myanmar (formerly Burma).
Outside the breeding season, the Scaly-sided Merganser can be encountered on
open lakes, but generally its preference is to be along rivers.
During the winter, the species is apparently rare, but regular, in Japan. It was
first discovered there in the mid-1980's. Also during that decade, the species
was found for the first time in Taiwan in winter.
Determining the population of this species has been difficult due to the
remoteness of the breeding range and the secretiveness of the bird. Surveys
conducted in Siberia, however, seem to have shown a considerable decrease since
the 1960's.
Steller's Sea-Eagle ______ Hokkaido, Honshu
(seen on Honshu twice, a rarity there;
apparently one bird two consecutive years) (winter tours)
Haliacetus pelagicus
The total population is estimated at about 5,000 birds and declining. Most
(more than half) of those birds winter in Hokkaido, Japan, and on the nearby
Kuril Islands.
Some birds, normally in the hundreds, winter further north on the Kamchatka
Peninsula and by the Sea of Okhotsk. Breeding is exclusively in southeastern
Siberia.

Greater Spotted Eagle ______ Kyushu (seen during
3 winter tours, at the same location; most recently in January 2008)
Aquila clanga
This species has a large, but highly fragmented, breeding range, from Poland
and Finland east to Mongolia and China. It winters in over 30 countries
(although in some of them in tiny numbers). It occurs as a vagrant in another 20
countries (including Japan). The Greater Spotted Eagle was first recorded in
Japan in 1952. Since then, it has been on Honshu,
Hokkaido, Kyushu, and the Nansei Shoto islands. All Japanese occurrences have
been in the winter. Recent occurrences in Kyushu, during consecutive winters, have
been in the same area - with either one or more birds repeatedly.
White-naped Crane ______ Kyushu
(winter tours)
Grus vipio
This elegant species breeds, for the most part, in wetlands in northeastern
China, at about 6 localities. Also, some breed in adjacent Mongolia, and a few
do so in Siberia. The total population of the species is estimated at about
5,000 individuals.
Arasaki, on the southern Japanese island of Kyushu, is a very important
wintering site for the species. It is the only Japanese site for the bird.
In 1987, the count of White-naped Cranes at Arasaki was 1,225.
In
1992, just over 2,000 White-naped Cranes wintered there.
In 2000, there were
about 2,500.
We learned during our December 2007 tour that on November 24 that year, the
count of White-naped Cranes at Arasaki was 1,059.

Hooded Crane ______ Kyushu
(winter tours)
Grus monarcha
This species breeds in wetlands in 2 areas of central Siberia. A very few have
been known, since 1991, to breed in China.
The Hooded Crane winters at a few localities in Japan, Korea, and eastern China.
The total population has been estimated, during recent years, from about 10,000
to 11,800 birds, having increased due to artificial feeding in the winter
(particularly at a prime wintering site, Arasaki, on the southern Japanese
island of Kyushu). More than 80% of the world's Hooded Cranes spend the winter
at Arasaki.
In 1987, the count of Hooded Cranes at Arasaki was 6,848.
In 1992, nearly 9,000 birds were there.
On November 24, 2007, the count of Hooded Cranes at Arasaki was
10,973.
There is only 1 other
wintering locality in Japan: on the main island of Honshu, at Yashiro, with
about 100 birds there.
In Japan (& Korea), the species winters almost exclusively at feeding
stations and nearby agricultural fields.
The population of Hooded Cranes has fluctuated considerably since the 1920's. At
present, the number is probably as large as at any time since then.
Swinhoe's
(or Asian Yellow) Rail ______ Amami (during 1 winter tour)Amami Woodcock ______ Amami, Okinawa
(spring &
winter tours) (JPe)
Scolopax mira
On Amami, this bird was reported to be common in the mid-1980's, mostly on the western
half of the island. Numbers near Naze City (Amami) have, during recent years, declined
markedly.
This species is not restricted to Amami, but is now known to also occur on the
islands of Tokunoshima, Okinawa, and Tokashiki, all in the Nansei Shoto of
southern Japan.
The Amami Woodcock is said to lack a roding display (as had by the
Eurasian Woodcock). Instead, it is said to display on the ground. The bird
is generally in the forest.

Saunder's Gull ______ Kyushu,
Amami, Okinawa (winter
tours)
Larus saundersi
The population of this gull, restricted to eastern Asia, has been estimated at
about 7,000 birds, and appears to be declining. The rate of decline has probably
increased due to land reclamation on tidal flats and disturbance of colonies
(both of these factors in the breeding areas). The bird has a specialized
habitat for breeding: tidal mudflats built up by silt deposits of large rivers.
So, land reclamation, especially, and oil exploration have reduced suitable
habitat, and unless breeding locations are protected, extinction is a
possibility.
Breeding is mostly in eastern
China and sporadically along the west coast of South Korea. In China, breeding
is only at just a few sites (7 colonies in 4 provinces). A breeding colony was
only found for the first time in 1984.
Wintering is in China (including Hong Kong), Taiwan, South Korea, and southwestern
Japan).
Japanese Murrelet ______ Honshu (offshore)
(spring & late-fall tours), Kyushu (winter tours)
Fairy Pitta ______ Kyushu
(spring tours)
Pitta nympha
This beautiful bird breeds in southern Japan, South
Korea, China and Taiwan. It winters mainly on the island of Borneo, Brunei, and
Kalimantan (in Indonesia). In its breeding range, it is localized. The bird's
population is unlikely to be more than a few thousand individuals, and is
apparently declining.
Ijima's (Leaf-) Warbler ______ Amami
(winter
tours) (JPe)
Phylioscopus ijimae
This bird breeds on the Izu Islands, southeast
of mainland Japan, between Oshima and Aogashima, and winters, apparently, on the
Nansei Shoto islands. It has a small and fragmented population, and is
declining.
Marsh Grassbird
(or
"Japanese Marsh Warbler")
______
Honshu
(spring tours)
Megalurus p. pryeri
(This species is known to breed at 6 locations on the
main Japanese island of Honshu. It probably also breeds in Heilongjiang and
Liaoning in China and at Lake Khanka in Siberia. It is said to winter in
southern Japan, and in the Yangtze basin in China. The population in Japan is
estimated to be about 1,000 birds.)
(Japanese) Yellow
(or
"Siebold's")
Bunting ______
Honshu,
including Hegura Island (spring
tours), Okinawa (during 1 winter tour)
Emberiza sulphurata
This species breeds only in Japan. It is thought to
winter mainly in the Philippines, although may winter in far-southern Japan (Nansei
Shoto) and in Taiwan. It is generally uncommon in its restricted breeding range
in Japan, and it believed to have declined significantly in the 20th Century.
Lidth's Jay ______ Amami
(spring & winter tours)
(JPe)
Garrulus lidthi
This beautiful, colorful bird is not only endemic to Japan, but to the island of Amami and the
adjacent small island of Kakeroma-jima, in the Nansei Shoto islands. Its
population was estimated to be about 5,800 birds in the 1970's.
Some aspects of this bird's behavior are unusual for a jay. It is a habitual
cavity-nester, laying plain-colored eggs. And it has been observed using its
stout bill as a climbing aid in the manner of a parrot.
Category #4: NEAR-THREATENED:
White-tailed Eagle ______ Hokkaido
(spring & winter
tours) , Honshu (winter tours)
Haliaetus albicilla
An adult
White-tailed Eagle in Hokkaido
(photographed during FONT Feb '05 Japan Tour)
Copper Pheasant ______ Honshu
(spring & winter tours), Kyushu
(spring & winter tours) (JPe)
Syrmaticus soemmerringi
This bird is found on the Japanese islands of Honshu,
Shikoku, and Kyushu, in coniferous, broadleaved, and mixed forests. There are 6
subspecies. It was once quite common, but has declined substantially (due to,
among other things, hunting), and is now considered uncommon and difficult to
find.

Copper Pheasant,
as found during FONT
Eastern
Curlew ______ Honshu (spring tours), Okinawa (winter tours)Whistling
(or
Formosa)
Green-Pigeon
(has also rather inappropriately been
called
Red-capped Green-Pigeon)
______ Amami, Okinawa
(spring & winter tours)
Treron
(formerly
Sphenurus)
formosae permagus
This bird is considered a small-island specialist. It
nests on the Nansei Shoto islands of Japan, Taiwan, and the Batanes Islands,
north of Luzon in the Philippines. It is uncommon & local in the Batanes,
rare in Taiwan, and common only in the Japanese Nansei Shoto islands.

Elegant
(or
Ryukyu)
Scops-Owl
(has previously been considered as part of the
Celebes
(or
Sulawesi)
Scops Owl;
prior to that as part of
Oriental Scops-Owl) ______
Amami, Okinawa (spring & winter tours)
Otus e. elegans (other subspecies are on islands off Taiwan and the
Philippines)
This bird occurs, as a resident, on the Nansei Shoto
islands of southern Japan, on Lanyu Island off the southeast Taiwan, and on the
Batanes and Babuyan islands off northern Luzon, in the Philippines. It inhabits
subtropical evergreen forest, and locally in and near villages. It is common
wherever suitable habitat remains in the Nansei Shoto, where there seems to be a
good population.
Japanese Waxwing ______ Hokkaido
(spring & winter
tours), Honshu (spring tours), Kyushu (winter tours), Amami
(during 1 winter
tour)
Bombycilla japonica
This species breeds only in eastern Siberia, in coniferous forests of eastern
Yakutia, Khabarovsk, and Amur. It is a non-breeding visitor in Japan, where it
is uncommon and sporadic. It also winters in South Korea, where it is irregular
and uncommon, and in mainland China. Given its limited breeding range, the total
population must be small.
Japanese Paradise Flycatcher
(was called Black Paradise Flycatcher)
______
Kyushu, Amami, Okinawa
(spring tours)
In Japan, this striking bird breeds is in humid forests of southern Honshu,
Shikoku, Kyushu, and the Nansei Shoto islands. It also nests in South Korea and
Taiwan. The bird winters, to the south, in the Philippines, China, Thailand,
Vietnam, Laos, Malaysia, and Indonesia, but no where commonly. A recent survey
has detected a steep decline in part of the Japanese nesting population,
possibly due to forest loss and degradation in the wintering range.
Japanese Reed Bunting (or Ochre-rumped
Bunting) ______
Honshu
(spring tours; once during a winter tour)
Emberiza y. yessoensis
In Japan, this species breeds in wetlands with tall grass on Honshu and Kyushu.
It formerly did so on Hokkaido. Outside Japan, breeding is only in extreme
south-east Siberia and north-east China. Wintering is in South Korea and along
the coast of eastern China. The bird is considered uncommon or rare in all parts
of its range. It is presumably declining due to loss and degradation of wetland
habitat in its breeding range.
OTHER SPECIES OCCURRING IN JAPAN THAT HAVE BEEN CONSIDERED
NEAR-THREATENED:
Mandarin Duck ______ Hokkaido (spring tours), Honshu
(spring & winter
tours), Kyushu (winter tours), Okinawa (during 1 winter tour)
Aix galericulata
Long-billed Plover ______ Honshu (spring & winter tours),
Kyushu, Amami
(winter tours)
Charadrius placidus
Grey-headed Lapwing ______ Honshu (spring & winter tours), Kyushu, Okinawa
(winter tours)
Vanellus cinereus
Ryukyu Robin ______
Amami, Okinawa (spring & winter tours)
Erithacus komadori (with different subspecies on Amami & Okinawa)

Red-billed
(or
Silky)
Starling ______
Kyushu, Okinawa (during 2 winter tours, a
vagrant in Japan, normally in China)
Sturnus sericeus
SOME FURTHER NOTES
REGARDING PARTICULAR SPECIES:
SIBERIAN (WHITE) CRANE (Grus leucogeranus)
This large, white bird with black on its wings, is (as noted above), at this
time, the third rarest crane in the world (after the Whooping and the
Red-crowned Cranes).
It is probably, at this time, the most threatened of the world's cranes.
Until just over 20 years ago, in 1981, the Siberian Crane was believed to be
even more rare, and endangered. It was in that year that about 800 birds were
discovered to be wintering at Lake Poyan, China's largest freshwater lake, along
the Yangtze River. With that, the known population nearly doubled. Subsequent
field surveys showed the total population of the species to be from 2,500 to
3,000 birds.
Still the outlook for the species is precarious. According to the crane
specialist, George Archibald, "from the tundra to the subtropics, few
endangered species involve so many complex problems in so many countries as does
the Siberian Crane".
There are 3 populations of Siberian Cranes. All but a few of the maybe 3,000
birds belong to the eastern population, which breeds in northeastern Siberia,
and winters along the Yangtze River in China.
Another very small central population breeds in the lower basin of the Kunovat
River in western Siberia, and winters in the Indian state of Rajaasthan (most
regularly in the Keoladeo National Park). When this population was observed at
its wintering grounds in 1992-93, it included just 5 birds. Only 4 birds were
observed at the Kunovat breeding grounds in 1995.
The western population (also very small and threatened), which apparently held at 8 to 14 birds in the late 1980's and early 1990's, has wintered at a single site along the southern coast of the Caspian Sea in Iran. The exact location of the breeding grounds of that population is unknown, but it's thought to be in the extreme northern portion of European Russia.
Thus, 2 populations of this species are extremely vulnerable (on the verge of extinction). These populations have continually declined from just over 100 birds in the 1960's (when they were discovered).
The Siberian Cranes that have occurred in Japan as vagrants have been
wanderers, on occasion, from the larger eastern population of the species that
normally winters in China.
Actually, in the past, the Siberian Crane was a common winter visitor in Japan
on Kyushu prior to the Mejii Era. Throughout the 20th Century, it became an
accidental, but there were some occurrences from Hokkaido south to Okinawa. Most
in Japan, however, continued to be on Kyushu. Interestingly, there were single
birds in Hokkaido in Oct-Dec 1977 and May-Sep 1985. The latter was a summering
bird in the Kushiro district, where the resident Japanese population of
Red-crowned Cranes reside.
Where Siberian Cranes breed, huge distances separate nesting pairs. Within each 1000 square kilometers in the breeding range, there are only 1 or 2 pairs of cranes.
The Siberian is the most aquatic of all cranes, exclusively using wetlands for nesting, feeding, and roosting. The nests are in bogs and marshes. In migration and in wintering areas, the bird prefers to feed and roost in shallow wetlands. Preferred foods are roots, sprouts, and stems of sedges and other aquatic plants. It seldom forages above the water line.
SHORT-TAILED
(or STELLER'S) ALBATROSS
(Phoebastria
(formerly Diomedea) albatrus)
This is one of the rarest of the world's albatrosses, having recently flirted
with extinction. It was formerly abundant in the North Pacific. The species bred
on at least 11 small Japanese islands (in the Bonin, Izu, and Ryukyu (Nansei
Shoto) groups). Away from its breeding sites, the bird has had pelagically a
widespread range, from Japan east to the Bering Sea and the west coast of North
America. (Most of the records off Alaska, Canada, and the west coast of the
mainland US have been during June-November. The species was formerly common
along the western North American coast.)
The Short-tailed Albatross was brought to the verge of extinction during the
late 19th and early 20th Centuries by plume hunters. The feathers were used for
stuffing quilts and pillows. Another factor in the decline was habitat
disturbance on islands where the birds bred, particularly on Toroshima (one of
the Izu Islands, 580 kilometers south of Tokyo). For years, it was only on the
volcanic ash slopes of that island that the species was known to breed.
Toroshima was settled by humans in 1887. Until about 1900, from 10 to 50 people
lived there. The tame albatrosses were easily killed, as many as 100 to 200 a
day, up to 5 million birds in 12 years. In 1902, a major volcanic eruption on
the island killed many of the human inhabitants. The albatross population was
severely reduced, primarily by the slaughter of the birds, and secondarily by
the volcanic activity. In 1929, only about 2.000 birds remained on Toroshima.
People who then recolonized the island conducted what would be the last great
massacre of the bird (nearly the entire remaining population of the species). By
1934, the Short-tailed Albatross was presumed to be extinct.
Miraculously, in the early 1950's, 8 to 10 albatrosses appeared on Toroshima. As immature birds, over the years, they had been wandering the seas. During that decade, numbers varied from 20 to 30. In 1958, on Torshima, there were only 14 or 15 adults, 5 to 7 immatures, and 8 chicks. Since then, there's been a slow but steady increase in the population of the bird, with Toroshima, most of the time, the only known breeding location for the species in the world.
In 1960, all of the chicks (6 of them) were found killed. Only 22 adult birds were found. In the 1960's, the population began to rise more substantially to over 50 birds. In the 1970's it was to over 60. By 1979, the count was 95 birds (& 22 chicks). In March 1981, there were about 130 birds (& 34 chicks). In November 1981, 63 eggs were found. In March 1982, there 21 chicks with about 140 adults and subadults. The total population figures following 1979 were based on observations at Toroshima together with estimates of non-breeders away from the colony. Thus, in 1982, the world population of the species was said to be about 250 birds. Since 1979, over 50 eggs have been laid annually.
In 1991, the population had risen to about 500 birds. Since then it has
increased further. The rate of increase has been about 7% per year. Thus, the
population doubled in 10 years. Breeding success improved with grass transplantation to
stabilize nesting areas. Still, however, the population remains rather
vulnerable due to the volcanic nature of Torishima.
During recent years, the Short-tailed Albatross has also been at a Japanese
island other than Torishima. It's been on the southerly island of Minami-kojima
(one of the Senkaku Islands). 12 adult birds were found there in 1971. Breeding
was not confirmed there until 1988. A population of 75 birds was estimated there
in 1991 (among them 15 breeding pairs). Since then, about 100 birds have been at
the island.
In the central Pacific, at Midway Atoll (in Hawaii), 1 or 2 Short-tailed
Albatrosses were present during the last 2 decades of the 20th Century. An
incubating bird was found there in 1993, but the egg was abandoned.
At the Torishima, Japan, breeding colony, adult birds return in October. Eggs
are laid October-November. Young are fledged from May onwards.
The following text is from "The Birds of Japan: Their Status &
Distribution", by Oliver L. Austin Jr. & Nagahisa Kuroda, published in
1953, and written when the Short-tailed (or Steller's) Albatross was thought to
be extinct:
Diomedeidae
Diomedea albatrus (Pallas)
Steller's (Short-tailed) Albatross
Japanese name: Ahodori (meaning "fool bird")
This magnificent albatross is probably extinct. Its disappearance was caused
partly by the volcanic eruptions which destroyed its former nesting grounds on
Torishima, but primarily by the activities of the plume hunters of the late 19th
and the early 20th centuries. The most-recent definite record is the one for the
few birds banded on Torishima in 1933 and killed there in 1934 (cf. Austin
1949b: 283-295).
It formerly bred on Torishima in the southern Izu Islands, on the northernmost
of the Bonin Islands, and on isolated islets in the southern Ryukyus and the
Pescadores. Its nesting season was from November through April. After the young
were on the wing, the birds moved northward along the Japanese coast to summer
in the Bering Sea, and then down the west coast of North America as far as Baja
California, before returning to their breeding grounds in late autumn. The
spring flight past Japan was marked by the numbers of dark-colored immature
birds it contained, which could be confused with the Black-footed Albatross. The
immature Steller's differed from the adult Black-footed only by its larger size
and its lighter-colored bill, neither of which could be discerned at a far
distance. An adult Steller's could also be difficult, at a distance, to tell in
the field from the adult Laysan Albatross.
BLAKISTON'S FISH OWL (Bubo (formerly Ketupa). b. blakistoni
This bird is as extraordinary and formidable as any owl in the world. The
Blakiston's Fish Owl (as it has traditionally been called) is huge, with a
wingspan of about 6 and a half feet. It's larger than the Eagle Owl of Siberia.
Its legs are fully feathered. Its toes are bristly as are those of other fish
owls. It's interesting that structurally the Blakiston's Fish Owl has features
of both the "fish owls" (genus Ketupa) and the "eagle owls"
(genus Bubo).
In addition to Hokkaido, Japan, the species occurs only in far-eastern Siberia
(including Sakhalin and the southern Kurile Islands) and adjacent Manchuria, In
that area of mainland Asia, with a cold climate and severe winters, there may be
a few hundred birds. They inhabit dense, dark, primeval forests, either
coniferous, deciduous, or mixed, bordering lakes, rivers, and even the ocean
shore. They live in cold and difficult places for birds that eat mostly fish.
On the northern Japanese island of Hokkaido (a place where winters can
also be severe), Blakiston's Fish-Owls are seriously endangered, confined to
relict areas of undisturbed forest. In 1983, less than 30 birds were recorded.
The following year, as survey workers gained more confidence of those guarding
secret locations, some 50 birds were located. During that year, 1984, however,
only 2 pairs were known to have bred successfully. Since then, in Hokkaido, with
successful nest box schemes in the forest, there has been some improvement in
nesting productivity. In the wild, nests are usually in large, hollow tress high
above the forest floor, but sometimes in decayed fallen trees closer to the
ground.
In the Siberian portion of the bird's range, Blakiston's Fish-Owls have been
found at a density of 1 pair to every 7.5 to 9 miles of large river. In
Hokkaido, in all of the river valleys now occupied by owls, that figure is
less than 6 miles. Territories are occupied by birds for years. Individual owls
are so attached to their territories that a bird which loses its mate will
remain alone until another may arrive by chance.
Blakiston's Fish-Owls are active throughout the night, as well as around dusk
and dawn. In the summer, they may do some hunting (to feed their young), during
lighter hours of the long summer days. In the winter, they're exclusively
nocturnal, emerging after sunset.
The territorial song is deep and resonant (although it does not travel as far as
that of the Eagle Owl). Males and females call together in duets.
Blakiston's Fish-Owls, aptly, prefer fish as their primary food. In the late
summer, they feed on trout. In the autumn, they turn to salmon. Also, at times,
they eat: pike, catfish, burbot, and crayfish. In the spring, they live largely
on swarms of frogs that spawn in riverside marshes. Small mammals (such as hares
and martens) are also eaten, as well as an occasional duck, Hazel Hen, or
smaller bird. At some places, the owls feed along rocky seacoasts. Where they
exist in sufficient numbers (and that's not many places), they may gather during
the winter in small groups by openings in the river ice.
In Hokkaido, Japan, the Balkiston's Fish-Owl, like the Brown Bear, was once held
in reverence. The fish-owl was known as "the god who defends the
village". Later, it suffered persecution, especially during the winter when
it was compelled to live close to openings in the ice, and, therefore, could
more easily be killed.
Today, under Japan's conservation laws, the Blakiston's Fish-Owl is fully
protected.
Recently, the fish-owl in Japan is said to have suffered, ironically, from the
attention given to it by people who actually favor its protection and
well-being. This applies particularly to photographers (and there are many of
them in Japan) and other enthusiasts. There are some who don't realize the
damage they can cause the bird. Recent efforts to discourage them have included
trapping the owls and placing highly-reflective rings on their legs to make them
less attractive in flashlit photographs. It's become a matter of concern to
ornithologists that such "extreme methods" seem needed in order to
protect a bird that's on the verge of extinction in
Japan.
Criteria for the
above Bird Classifications:
CRITICALLY THREATENED: Faces an extremely high risk of extinction in the wild.
With a rapid decline (80% over 10 years), or a very small population (of under
250 mature birds).
ENDANGERED: Not critical, but still with a very high risk of extinction in the
wild. With a rapid decline (50% over 10 years), and a small population (of 2,500
mature birds).
VULNERABLE: Not critical or endangered, but still with a high risk of extinction
in the wild. With a decline (50% over 20 years), and a small population (of
10,000 mature birds).
NEAR-THREATENED: Close to qualifying for any of the above threatened
categories.
Among References:
Threatened Birds of the World (a Birdlife International publication), Lynx Edicions, 2000