Little Auk vs Ancient Murrelet

Alle alle 比較対象 Synthliboramphus antiquus

Side-by-Side Comparison

属性 Little Auk Ancient Murrelet
学名 Alle alle Synthliboramphus antiquus
Charadriiformes Charadriiformes
Alcidae Alcidae
保全状況 Least Concern Least Concern
体長
翼開長 23.2 cm (9.1 in) 27.1 cm (10.7 in)
体重 170.0 g (6.00 oz) 208.16666666666666 g (7.34 oz)
食性 -- --
一腹卵数 1 2
Population Trend

Habitat Comparison

共通生息地

Little Auk only

None

Ancient Murrelet only

保全状況

Least Concern

Little Auk

Least Concern

Ancient Murrelet

About These Birds

Little Auk

北極圏で繁殖し、北大西洋で越冬する小型の海鳥(体長17〜21cm)。黒白の体と小さな嘴が特徴で、北極海で最も個体数の多い海鳥の一つ。Alle alle(ヒメウミスズメ)はノルウェー、グリーンランド、スピッツベルゲンに数百万羽が集まる大コロニーを形成する。Alcidae科。

Ancient Murrelet

Ancient Murrelet, 24–27 cm, breeds in burrows on North Pacific islands from British Columbia to Japan. Black hood, grey back, white underparts with yellow bill. Nocturnal at colonies to avoid predators. Chicks lead-march to sea within days of hatching — abandoning the nest very early. Planktivore and piscivore.

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