Küstenseeschwalbe vs Atlantic White Tern

Sterna paradisaea verglichen mit Gygis alba

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Side-by-Side Comparison

Merkmal Küstenseeschwalbe Atlantic White Tern
Wissenschaftlicher Name Sterna paradisaea Gygis alba
Ordnung Charadriiformes Charadriiformes
Familie Laridae Laridae
Erhaltungsstatus Least Concern Least Concern
Länge 34,0 cm (13.4 in)
Flügelspannweite 80,0 cm (31.5 in) 50,4 cm (19.8 in)
Gewicht 110,0 g (3.88 oz) 138,0 g (4.87 oz)
Ernährung Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. --
Gelegegröße 2-3 1
Population Trend
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Size Comparison

Body Length
Küstenseeschwalbe 34,0 cm
Atlantic White Tern
Flügelspannweite
Küstenseeschwalbe 80,0 cm
Atlantic White Tern 50,4 cm
Gewicht
Küstenseeschwalbe 110,0 g
Atlantic White Tern 138,0 g
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Habitat Comparison

Gemeinsame Lebensräume

Küstenseeschwalbe only

Atlantic White Tern only

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Küstenseeschwalbe

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

Küstenseeschwalbe

Gesang

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.

Atlantic White Tern

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Geographic Range & Migration

Küstenseeschwalbe

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

Atlantic White Tern

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Erhaltungsstatus

Least Concern

Küstenseeschwalbe

Least Concern

Atlantic White Tern

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How to Tell Them Apart

Küstenseeschwalbe

Gefieder

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.

Schnabel

Slender, pointed, bright red bill

Atlantic White Tern

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About These Birds

Küstenseeschwalbe

Die Küstenseeschwalbe hält den Rekord für die längste bekannte Wanderung im Tierreich und legt jährlich rund 70.000 km zwischen Arktis und Antarktis und zurück zurück. Über ihre rund 30 Lebensjahre hinweg fliegt sie damit rechnerisch das Äquivalent von drei Rundreisen zum Mond. Dieser bemerkenswerte Vogel erlebt mehr Tageslicht als jedes andere Lebewesen der Erde.

Atlantic White Tern

Atlantic White Tern: 28–33 cm, wingspan 76–87 cm, ethereally white seabird with blue-grey bill, blue orbital ring, and large dark eyes. Breeds on tropical Atlantic islands including Ascension and Saint Helena; related species widespread across the Indo-Pacific. Nests on bare branches with no nest material. Feeds on small fish near the surface.

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Related Comparisons

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