Black-necked Grebe vs Atitlan Grebe
Podiceps nigricollis 比較対象 Podilymbus gigas
Side-by-Side Comparison
| 属性 | Black-necked Grebe | Atitlan Grebe |
|---|---|---|
| 学名 | Podiceps nigricollis | Podilymbus gigas |
| 目 | Podicipediformes | Podicipediformes |
| 科 | Podicipedidae | Podicipedidae |
| 保全状況 | Least Concern | Extinct |
| 体長 | — | — |
| 翼開長 | 25.4 cm (10.0 in) | — |
| 体重 | 414.3333333333333 g (14.62 oz) | 682.6666666666666 g (24.08 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-8 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Black-necked Grebe
Extinct
Atitlan Grebe
About These Birds
Black-necked Grebe
ヨーロッパ・アジア・北米・アフリカの湖沼で繁殖するカイツブリ(体長28〜34cm)。繁殖期は黒い頭部に金色の耳羽が特徴的で、赤い目が識別点。Podiceps nigricollis(ハジロカイツブリ)は集団繁殖し、大きな群れで越冬する。日本でも全国の湖沼・海岸で冬季に普通に見られる。Podicipedidae科。
Atitlan Grebe
Atitlan Grebe (Podilymbus gigas) is an extinct large flightless grebe formerly endemic to Lake Atitlán, Guatemala. Similar to Pied-billed Grebe but larger, with heavier bill and flightless wings. Extirpated by the 1980s due to introduced bass predating chicks, reed-bed destruction, and hunting. Last confirmed individuals died in the early 1990s.