California Gull vs Aleutian Tern
Larus californicus compared with Onychoprion aleuticus
Side-by-Side Comparison
| Attribute | California Gull | Aleutian Tern |
|---|---|---|
| Scientific Name | Larus californicus | Onychoprion aleuticus |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 75.4 cm (29.7 in) | 52.4 cm (20.6 in) |
| Weight | 717.5 g (25.31 oz) | 104.88 g (3.70 oz) |
| Diet | -- | -- |
| Clutch Size | 2-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
California Gull
Vulnerable
Aleutian Tern
About These Birds
California Gull
California Gull, 46–55 cm, breeds at inland lakes of western North America and winters on the Pacific coast. Yellow bill with red and black spot, greenish-yellow legs. Omnivore; famous for saving Utah crickets crops in 1848 — commemorated as Utah's state bird. Strongly migratory.
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.