Arctic Tern vs Common Gull-billed Tern
Sterna paradisaea comparé à Gelochelidon nilotica
Side-by-Side Comparison
| Attribut | Arctic Tern | Common Gull-billed Tern |
|---|---|---|
| Nom scientifique | Sterna paradisaea | Gelochelidon nilotica |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 34,0 cm (13.4 in) | — |
| Envergure | 80,0 cm (31.5 in) | 61,6 cm (24.3 in) |
| Poids | 110,0 g (3.88 oz) | 214,075 g (7.55 oz) |
| Régime alimentaire | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| Taille de la couvée | 2-3 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
Arctic Tern only
Aucun(e)
Common Gull-billed Tern only
Aucun(e)
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.
Song & Call Comparison
Arctic Tern
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.
Common Gull-billed Tern
Geographic Range & Migration
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Common Gull-billed Tern
Statut de conservation
Arctic Tern
Common Gull-billed Tern
How to Tell Them Apart
Arctic Tern
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
Common Gull-billed Tern
About These Birds
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
Common Gull-billed Tern
Common Gull-billed Tern, 35–38 cm, wingspan 76–86 cm, has a broad global range across Europe, Asia, the Americas, and Australia. Stout black bill adapted for catching crabs, insects, and small vertebrates — atypically terrestrial for a tern. Summers in marshes and steppes; winters on tropical coasts.