ML474952621
投稿者
日付
場所
- 年齢と性別
- 成鳥、性別不明 - 1
- 行動
- 採餌
観察結果の詳細
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.
テクニカル・インフォメーション
- モデル
- Canon EOS R5
- レンズ
- RF100-500mm F4.5-7.1 L IS USM
- ISO
- 500
- 焦点距離
- 500 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/7.1
- シャッタースピード
- 1/400 sec
- 大きさ
- 1379 pixels x 1795 pixels
- オリジナルのファイルサイズ
- 738.07 KB