ML132901401
Kullanıcı
Tarih
Konum
- Yaş
- Belirtilmemiş
- Cinsiyet
- Belirtilmemiş
- Etiket
- Birden fazla tür
Gözlem detayları
Almost immediately upon our arrival at the egg ranch, I spotted a first-winter gull that looked like a Lesser Black-backed, but unfortunately, the birds flew when we approached and I lost this bird. Some time later I was able to relocate this bird standing among other gulls atop one of the manure piles. Although the light was mediocre at best, the views through my scope were still relatively good. This was a large gull that seemed comparable in size to a Herring Gull, yet it was noticeably larger than the Ring-billed Gulls that dominated the flocks. It also had a long yet relatively slim bill on which the upper and lower edges were parallel almost until reaching the blunt tip. I further thought the bill would have extended backward on the face to the rear edge of the auriculars. The forehead was sloping but the crown was smoothly rounded. I thought the neck was slimmer than in some of the gulls, but it was unremarkable in length. The body was plump and the wings were relatively long and tapered, but it was hard to determine either the primary projection or the placement of the wingtips relative to the tail because this bird was partially obscured by another gull. This was a generally dark bird, but the head and neck were contrastingly pale. I also noted that the streaking on the crown, nape, and across the face was fine and well-defined, which was unlike that on the young Herring Gulls. The streaking on the back and sides of the neck was somewhat bolder, but it too was well defined and really quite dark. The mantle was dark gray with a somewhat mottled appearance, and the lower scapulars were dark gray basally, but with notches of a paler color that in places appeared buffy but in others light gray. The wing coverts were slaty-gray to blackish with fine fringes that seemed to be pale buff to white, and which produced a crisply scaled pattern. I did not see the middle part of the wing very well, but the exposed primary tips appeared to be solidly black. The overall pattern of this bird's upperparts was therefore quite dark, generally more gray than brown, and with a more complex pattern on the scapulars than I associate with a juvenile Lesser Black-backed Gull, but more appropriate for a bird in first-basic plumage. I did not see the underparts as well as the upperparts, but what I did see appeared whitish on the neck and breast, with the former at least being streaked conspicuously. I am not sure I ever saw the belly or the undertail coverts, but what I saw of the flanks appeared quite dark. I never did see the rump or tail on this bird. The bill appeared to be entirely black, and the eyes were dark brown, but I cannot now recall if I noted the color of the legs, and I am pretty sure I never clearly saw the feet.
Teknik bilgiler
- Model
- Canon EOS 7D
- Lens
- EF400mm f/5.6L USM
- ISO
- 800
- Odak uzunluğu
- 400 mm
- Flaş
- Flash did not fire, auto
- Diyafram açıklığı
- f/8.0
- Shutter hızı
- 1/1000 sec
- Ebatlar
- 961 pixels x 647 pixels
- Orijinal dosya boyutu
- 699.9 KB