ML57560671
Cliff x Cave Swallow (hybrid) Petrochelidon pyrrhonota x fulva
作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
观察细节
This entry represents an apparent hybrid Cliff Swallow x "Caribbean" Cave Swallow, which is not an eBird-allowed "taxon"/ hybrid combo at this point in time. **Edit 02/25/2018 - entry changed to the hybrid option since this has now been added to the eBird taxonomy** This striking bird repeatedly visited an apparent nest site amidst a large colony of "Caribbean" Cave Swallows underneath the on-ramp bridge (for turnpike south) at these coordinates: 25.474477, -80.445188. In overhead flight, this bird was instantly noticeable by its extremely dark throat when compared to the [broad spectrum of variation in] Cave Swallows around the colony. The combination of very rich rust-chestnut rump, very richly colorful undertail coverts and flank streaks, and the even, deep reddish orange of the face and throat (with a few creamy feathers mixed in) lacking dark central throat spotting seems to rule out melanogaster-type (dark forehead or "Southwestern-type") Cliff Swallow. The rich rump color, thick flank streaking, and rich undertail covert color seem to suggest that the Cave Swallow parent was one of the local breeding Caribbean birds (ssp. fulva).
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF400mm f/5.6L USM
- ISO
- 640
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/2500 sec
- 尺寸
- 1300 pixels x 867 pixels
- 原始文件大小
- 427.15 KB