Arctic Tern vs Kelp Gull
Sterna paradisaea comparé à Larus dominicanus
Side-by-Side Comparison
| Attribut | Arctic Tern | Kelp Gull |
|---|---|---|
| Nom scientifique | Sterna paradisaea | Larus dominicanus |
| 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) | 80,4 cm (31.7 in) |
| Poids | 110,0 g (3.88 oz) | 955,8333333333334 g (33.72 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
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.
Kelp Gull
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.
Kelp Gull
Statut de conservation
Arctic Tern
Kelp Gull
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
Kelp Gull
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.
Kelp Gull
Kelp Gull, 54–65 cm, is the dominant large gull of the Southern Hemisphere, found on all sub-Antarctic and southern temperate coasts. Jet-black back, white body, yellow bill with red spot. Omnivore; forages on rocky shores, follows fishing boats, and preys on penguin eggs. Resident and sedentary.