ML81553251
投稿者
日付
場所
- 年齢と性別
- 幼鳥、性別不明 - X
視聴覚メディア・ノート
Photo (c) George Higgins.
観察結果の詳細
A juvenile Ross's Gull was discovered by visitors to Herschel Island-Qikiqtaruk and pointed out to Helmut Grünberg who was also visiting the island. Helmut identified the bird as a juvenile Ross's Gull, and photos were obtained by George Higgins. It was present at Pauline Cove 21-25 July 1991. The timing of this juvenile Ross's Gull was months earlier than the species' regular fall passage at Point Barrow, Alaska, and thus suggestive of local breeding. In flight, the juvenile shows a wedge-shaped tail with black tips on the central tail feathers. REFERENCE: Sinclair, P. H., W. A. Nixon, C. D. Eckert, and N. L. Hughes (Eds). 2003. Birds of the Yukon Territory. University of British Columbia Press, Vancouver, British Columbia. 595 pp.
テクニカル・インフォメーション
- 大きさ
- 4281 pixels x 2854 pixels
- オリジナルのファイルサイズ
- 4.92 MB