Journal of the Yamashina Institute for Ornithology

Online ISSN : 1883-3659
Print ISSN : 0044-0183
ISSN-L : 0044-0183

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Issue 2 Pages 23-
Issue 1 Pages 1-

Volume 23, Issue 1

Displaying 1-12 of 12 articles from this issue

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Observation on Breeding of the Common Kingfisher Alcedo atthis in the Akasaka Imperial Grounds

Sayako Norinomiya, Sachie Kanoya, Yoshiko Sato, Tatsuhiko Ando, Ryozo ...

1991 Volume 23 Issue 1 Pages 1-5
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1

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While it is probable that Common kingfishers Alcedo atthis used to be found in central Tokyo, they have for long been found only in the outskirts of the city. However, recently they have appeared in many locations near the center of the city. We observed their breeding at the Akasaka Imperial Grounds in the center of Tokyo. In the first brood, four young were observed to fledge on May 20, and in the second, five young fledglings were confirmed on July 14 and 15. Some aspects of breeding behaviour of the parents are described.

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Satellite tracking of the migration routes of Whistling Swans Cygnus columbianus

Hiroyoshi Higuchi, Fumio Sato, Shigeru Matsui, Masaki Soma, Noboru Kan ...

1991 Volume 23 Issue 1 Pages 6-12
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.6

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Four Whistling Swans were satellite tracked from Lake Kuccharo, northernmost Japan, to eastern Siberia, the USSR, from April 10 to May 26, 1990. A transmitter, 112mm×35mm×19mm in size and 83g in weight, was attached to the back (three individuals) or neck (one individual) of the swans. A total of 116 location data were obtained. The four swans went north along Sakhalin, and stayed around the mouth of Amur River or in northern Sakhalin for several days to nearly a month. In three of the four swans, the battery exhausted around the mouth of the Amur River or in northern Sakhalin, but one swan was successfully tracked to the breeding ground in tundra. The life of the batteries was expected to be two months but was in fact 30-46 days. The shorter duration may be due to long exposure to cold weather in northern areas.

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Spotted Greenshank Tringa guttifer Feeding on an Intertidal Flat in Korea

C. Swennen, J. Y. Park

1991 Volume 23 Issue 1 Pages 13-19
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.13

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Foraging behaviour of two individuals of the endangered Spotted Greenshank Tringa guttifer was studied for 1.5h. The birds foraged actively on an extensive intertidal mudflat during the autumn migration. Although keeping mutual distances of 5-20m, rarely more, the birds obviously stayed together all the time. Prey taken were crabs Macrophthalmus japonicus of an estimated carapace width of 15-20mm. Most crabs retreated in the mud as soon a bird approached, but probing for crabs was not observed. The birds located their prey by eye and captured them via runs or flights. On average 1.2 crabs were taken per 5min, representing 0.53g ADW, giving a consumption of 0.13g ADW per minute of active foraging.

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Sighting a Gyrfalcon in the Sea of Okhotsk

Haruo Ogi, Tomio Miyashita

1991 Volume 23 Issue 1 Pages 20-21_1
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.20

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[in Japanese]

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Errata

1991 Volume 23 Issue 1 Pages e1d
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1d

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Errata

1991 Volume 23 Issue 1 Pages e1e
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1e

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Errata

1991 Volume 23 Issue 1 Pages e1f
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1f

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Errata

1991 Volume 23 Issue 1 Pages e1g
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1g

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Errata

1991 Volume 23 Issue 1 Pages e1h
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1h

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Errata

1991 Volume 23 Issue 1 Pages e1a
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1a

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Errata

1991 Volume 23 Issue 1 Pages e1b
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1b

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Errata

1991 Volume 23 Issue 1 Pages e1c
Published: 1991
Released on J-STAGE: December 25, 2008

DOIhttps://doi.org/10.3312/jyio1952.23.1_e1c

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