ML232693681
投稿者
日付
場所
- 年齢と性別
- 成鳥オス - 1
- タグ
- 巣
視聴覚メディア・ノート
Female is in the cavity with the nestlings; male is attending the nest.
観察結果の詳細
Found an active nest in a cavity ~3m above ground level in a large Mexican blue oak, located where a branch broke off long ago. Both adults were actively tending to the nest, which contained at least 2 nestlings. For most of the time I watched 1 adult (presumed to be the female based on existing literature) was sitting on the nest while the other was actively foraging and bringing prey deliveries to the nest. The provisioning parent (presumably the male) would sing softly when it got close to the nest, flitting from rock to rock with the food item, before flying to the nest to deliver the food. After 10-15 minutes or watching and 3-4 feeding visits, the parent that had been sitting on the nest emerged and exited with a fecal sac. One of the parents returned and settled into the nest again around 10 minutes later. According to Birds of the World: "Nests in rock caverns, crevices, cliffs, or banks." I've never heard of the species nesting in a tree cavity, so this must be quite rare.
テクニカル・インフォメーション
- モデル
- Canon EOS 7D Mark II
- レンズ
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 1000
- 焦点距離
- 400 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/7.1
- シャッタースピード
- 1/400 sec
- 大きさ
- 1800 pixels x 1200 pixels
- オリジナルのファイルサイズ
- 580.16 KB