ML474952621
作者
日期
地点
- 年龄和性别
- 成鸟,性别未知 - 1
- 行为
- 觅食或者进食
观察细节
One individual observed for about 2,5 hours until it left the tree. The bird was feeding on fresh leaves in the canopy of a fig-tree. May have been same individual that was seen earlier (see previous checklist) due to similarities in plumage and behavior. Likely that the pigeons have preferred trees for foraging, which they return to throughout the day. Bird would as seen earlier, mainly feed on the fresh sprouts of the tree and would snooze for 15-25 minutes between feeding. Dry clay/mud on bill indicating that the pigeon had visited the bank of a stream/the forest floor, either to gather minerals or gizzard-stones. Bird was rather unaffected by human activity below the tree and remained calm despite shouting between bypasses. It would however still occasionally keep an eye on people below, including the observer/photographer as I moved around with my camera. Yet, when large birds (Pied crows) or megabats flew by, the pigeon would become attentive, stretching its neck and occasionally move nervously - a clear result of predation from above, by native raptors (Peregrine falcon (and possibly Malagasy Harrier)). No vocalization performed at any point during observation period.
技术信息
- 型号
- Canon EOS R5
- 镜头
- RF100-500mm F4.5-7.1 L IS USM
- ISO
- 500
- 焦距
- 500 mm
- 闪光
- Flash did not fire
- 光圈
- f/7.1
- 快门速度
- 1/400 sec
- 尺寸
- 1379 pixels x 1795 pixels
- 原始文件大小
- 738.07 KB