ML167203351
- 性別與年齡
- 成鳥,性別未知 - X
影音備註
Picture with head, bill shape and structure, underwing coloration and leg color
觀察細節
During nighttime mist netting efforts for Ashy-Storm-Petrels at Arch Point on Santa Barbara Island, Santa Barbara County, at 21:08 on June 1, 2016 an all dark tube nosed seabird flew into the mist net. Upon retrieving the bird, it was notably larger than either Ashy or Black Storm-petrels which breed on the island (the audio attraction was playing Ashy Storm-petrel calls). First impressions were that it was all dark with no noticeable areas of lighter coloration, and had a thicker than expected all dark bill with very prominent tubed nostrils and a large nail. Its tail feathers were tapered and bluntly rounded at resting. The bird was photographed before it was released. Identification discounted any petrels with significant white plumage or other obvious markings the observation and pictures did not include. Lack of markings of lighter coloration and general characteristics of the birds shape tentatively identified it as Bulweria spp, and based on relative size, tarsal measurement and thicker, stouter bill structure the bird was identified as Bulweria fallax over B. bulwerii. Pictures and written descriptions were circulated to seabird identification experts, and the identification was agreed upon. Record was accepted by the California Bird Records Committee in 2018.
技術資訊
- 型號
- SPH-L720
- ISO
- 50
- 焦距
- 4.2 mm
- 閃光
- Flash fired
- 光圈值
- f/2.2
- 快門
- 1/16 sec
- 次方
- 4128 pixels x 2322 pixels
- 原始檔案大小
- 2.25 MB