Heermann's Gull vs Grey-backed Tern
Larus heermanni comparado con Onychoprion lunatus
Side-by-Side Comparison
| Atributo | Heermann's Gull | Grey-backed Tern |
|---|---|---|
| Nombre científico | Larus heermanni | Onychoprion lunatus |
| Orden | Charadriiformes | Charadriiformes |
| Familia | Laridae | Laridae |
| Estado de conservación | Near Threatened | Least Concern |
| Longitud | — | — |
| Envergadura | 67,2 cm (26.5 in) | 52,2 cm (20.6 in) |
| Peso | 448,26666666666665 g (15.81 oz) | 126,21666666666665 g (4.45 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Estado de conservación
Near Threatened
Heermann's Gull
Least Concern
Grey-backed Tern
About These Birds
Heermann's Gull
La gaviota de Heermann es una gaviota inconfundible del Pacífico mexicano y norteamericano, con cabeza blanca en verano y pico rojo.
Grey-backed Tern
Grey-backed Tern, 35–37 cm, is a Pacific seabird breeding on islands from Hawaii to Micronesia and Polynesia. Pale grey back distinguishes it from the similar Bridled Tern; white below with black cap. Piscivore; surface-dips and shallow plunge-dives. Largely pelagic when not breeding.