Whiskered Tern vs Heermann's Gull
Chlidonias hybrida verglichen mit Larus heermanni
Side-by-Side Comparison
| Merkmal | Whiskered Tern | Heermann's Gull |
|---|---|---|
| Wissenschaftlicher Name | Chlidonias hybrida | Larus heermanni |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | — | — |
| Flügelspannweite | 46,4 cm (18.3 in) | 67,2 cm (26.5 in) |
| Gewicht | 84,5 g (2.98 oz) | 448,26666666666665 g (15.81 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 2-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Whiskered Tern
Near Threatened
Heermann's Gull
About These Birds
Whiskered Tern
Whiskered Tern, 23–25 cm, is a marsh tern breeding from Europe and Africa to Asia and Australia. Breeding plumage: dark grey below, black cap, red bill. Forages over freshwater marshes, dipping for insects and small fish. Short-distance migrant; winters in sub-Saharan Africa and South Asia.
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.