Caspian Tern vs African Skimmer

Hydroprogne caspia 比較対象 Rynchops flavirostris

Side-by-Side Comparison

属性 Caspian Tern African Skimmer
学名 Hydroprogne caspia Rynchops flavirostris
Charadriiformes Charadriiformes
Laridae Laridae
保全状況 Least Concern Least Concern
体長
翼開長 82.1 cm (32.3 in) 66.4 cm (26.1 in)
体重 656.0 g (23.14 oz) 165.66666666666666 g (5.84 oz)
食性 -- --
一腹卵数 2-4 1-5
Population Trend

Habitat Comparison

共通生息地

Caspian Tern only

None

African Skimmer only

None

保全状況

Least Concern

Caspian Tern

Least Concern

African Skimmer

About These Birds

Caspian Tern

世界中の温帯から熱帯の沿岸・大きな湖で繁殖する最大のアジサシ(体長48〜60cm)。大きな赤い嘴と黒い頭頂部が特徴的で、カモメほどの大きさがある。Hydroprogne caspia(ハジロクロハラアジサシ)は水中に垂直に急降下して魚を捕食し、他のアジサシや魚鷹から食べ物を奪うこともある。Laridae科。

African Skimmer

African Skimmer: 36–42 cm, black-and-white skimmer with a long bright orange-yellow bill where the lower mandible is longer than the upper. Flies low over large rivers and lakes, cutting the water surface with the lower bill to catch fish. Resident and partial migrant along large rivers and lakes of sub-Saharan Africa. NT.

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