Common Gull vs Aleutian Tern

Larus canus 比較対象 Onychoprion aleuticus

Side-by-Side Comparison

属性 Common Gull Aleutian Tern
学名 Larus canus Onychoprion aleuticus
Charadriiformes Charadriiformes
Laridae Laridae
保全状況 Least Concern Vulnerable
体長
翼開長 70.2 cm (27.6 in) 52.4 cm (20.6 in)
体重 431.3333333333333 g (15.21 oz) 104.88 g (3.70 oz)
食性 -- --
一腹卵数 3-5 1-4
Population Trend

Habitat Comparison

共通生息地

Common Gull only

None

Aleutian Tern only

保全状況

Least Concern

Common Gull

Vulnerable

Aleutian Tern

About These Birds

Common Gull

ヨーロッパ・アジア・北米の沿岸・内陸湖で繁殖するカモメ(体長40〜46cm)。白い体と灰色の背、緑みがかった黄色の嘴が特徴。Larus canus(カモメ)は日本でも冬季に全国の海岸や港、河川で普通に見られる代表的なカモメ。繁殖は北方で行い、南方の沿岸で越冬する。Laridae科。

Aleutian Tern

Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.

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