Küstenseeschwalbe vs Relict Gull
Sterna paradisaea verglichen mit Larus relictus
Side-by-Side Comparison
| Merkmal | Küstenseeschwalbe | Relict Gull |
|---|---|---|
| Wissenschaftlicher Name | Sterna paradisaea | Larus relictus |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Vulnerable |
| Länge | 34,0 cm (13.4 in) | — |
| Flügelspannweite | 80,0 cm (31.5 in) | 67,0 cm (26.4 in) |
| Gewicht | 110,0 g (3.88 oz) | 516,75 g (18.23 oz) |
| Ernährung | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| Gelegegröße | 2-3 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Gemeinsame Lebensräume
Küstenseeschwalbe only
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Relict Gull 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.
Song & Call Comparison
Küstenseeschwalbe
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.
Relict Gull
Geographic Range & Migration
Küstenseeschwalbe
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Relict Gull
Erhaltungsstatus
Küstenseeschwalbe
Relict Gull
How to Tell Them Apart
Küstenseeschwalbe
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.
Slender, pointed, bright red bill
Relict Gull
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.
Relict Gull
Relict Gull, 44–46 cm, is a Vulnerable species breeding on remote saline lakes in Mongolia and northern China. Black hood with white eye-crescents, red bill, red legs. Very poorly known outside breeding season; winters on Yellow Sea coasts. Threatened by drought and wetland degradation.