Slender-billed Gull vs Aleutian Tern
Larus genei compared with Onychoprion aleuticus
Side-by-Side Comparison
| Attribute | Slender-billed Gull | Aleutian Tern |
|---|---|---|
| Scientific Name | Larus genei | Onychoprion aleuticus |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 60.2 cm (23.7 in) | 52.4 cm (20.6 in) |
| Weight | 285.0 g (10.05 oz) | 104.88 g (3.70 oz) |
| Diet | -- | -- |
| Clutch Size | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Slender-billed Gull
Vulnerable
Aleutian Tern
About These Birds
Slender-billed Gull
Slender-billed Gull, 37–40 cm, breeds in Mediterranean and Black Sea saltmarshes and lagoons, wintering on West African coasts. Distinctive long slender bill gives a front-heavy profile; white head lacking hood, pinkish-white underparts. Feeds on fish and invertebrates in shallow coastal waters.
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.