Heermann's Gull vs Little Tern
Larus heermanni в сравнении с Sternula albifrons
Side-by-Side Comparison
| Характеристика | Heermann's Gull | Little Tern |
|---|---|---|
| Научное название | Larus heermanni | Sternula albifrons |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Near Threatened | Least Concern |
| Длина | — | — |
| Размах крыльев | 67,2 cm (26.5 in) | 33,9 cm (13.3 in) |
| Масса | 448,26666666666665 g (15.81 oz) | 55,0 g (1.94 oz) |
| Питание | -- | -- |
| Размер кладки | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Near Threatened
Heermann's Gull
Least Concern
Little Tern
About These Birds
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.
Little Tern
Little Tern is one of the world's smallest terns, 21–25 cm, breeding along coastlines and rivers across Europe, Asia, Africa, and Australia. White below, grey above, with a yellow bill tipped black and a white forehead patch. Hovers and plunge-dives for small fish. Migratory; winters in tropical coasts.