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Side-by-Side Comparison

属性	Lesser Noddy	Arctic Tern
学名	Anous tenuirostris	Sterna paradisaea
目	Charadriiformes	Charadriiformes
科	Laridae	Laridae
保护状况	Least Concern	Least Concern
体长	—	34.0 cm (13.4 in)
翼展	42.4 cm (16.7 in)	80.0 cm (31.5 in)
体重	106.35 g (3.75 oz)	110.0 g (3.88 oz)
食性	--	Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving.
产卵数	1	2-3
Population Trend	—	—

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Size Comparison

Body Length

Lesser Noddy —

Arctic Tern 34.0 cm

翼展

Lesser Noddy 42.4 cm

Arctic Tern 80.0 cm

体重

Lesser Noddy 106.35 g

Arctic Tern 110.0 g

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Habitat Comparison

共同栖息地

🏖️ Coastal

Lesser Noddy only

无

Arctic Tern only

🌿 Wetland 🌾 Grassland

Arctic Tern

Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.

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Song & Call Comparison

Lesser Noddy

Arctic Tern

鸣唱

A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.

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Geographic Range & Migration

Lesser Noddy

Arctic Tern

Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.

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保护状况

Least Concern

Lesser Noddy

Least Concern

Arctic Tern

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How to Tell Them Apart

Lesser Noddy

Arctic Tern

羽毛

Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.

喙

Slender, pointed, bright red bill

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About These Birds

Lesser Noddy

Lesser Noddy: 30–34 cm, smaller and darker than Brown Noddy with a whiter cap sharply demarcated from the dark body and a slender bill. Breeds colonially in mangroves and low bushes on islands of the tropical Indian Ocean and western Pacific. Feeds on small fish and invertebrates by dipping to sea surface. Wingspan 58–63 cm. Partly migratory.

Arctic Tern

北极燕鸥进行所有动物中最长的迁徙，每年从北极繁殖地飞往南极越冬地，往返距离超过70,000公里。体型纤细，翼展约80厘米，全身主要为白色，具黑色头冠和红色喙。无危；繁殖于北极和亚北极海岸及岛屿，全球种群约200万只。

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Related Comparisons

雞尾鸚鵡 vs Arctic Tern

look-alike

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