Brown-headed Gull vs Aleutian Tern
Larus brunnicephalus compared with Onychoprion aleuticus
Side-by-Side Comparison
| Attribute | Brown-headed Gull | Aleutian Tern |
|---|---|---|
| Scientific Name | Larus brunnicephalus | Onychoprion aleuticus |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 66.8 cm (26.3 in) | 52.4 cm (20.6 in) |
| Weight | 584.0 g (20.60 oz) | 104.88 g (3.70 oz) |
| Diet | -- | -- |
| Clutch Size | 1-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Brown-headed Gull
Vulnerable
Aleutian Tern
About These Birds
Brown-headed Gull
Brown-headed Gull, 41–46 cm, breeds at high-altitude Tibetan lakes and Central Asian wetlands, wintering on coasts from India to Southeast Asia. Brown hood in breeding plumage; white wing mirrors. Piscivore and invertivore; follows fishing activity in coastal bays.
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.