Blue Noddy vs Charrán Ártico
Anous ceruleus comparado con Sterna paradisaea
Side-by-Side Comparison
| Atributo | Blue Noddy | Charrán Ártico |
|---|---|---|
| Nombre científico | Anous ceruleus | Sterna paradisaea |
| Orden | Charadriiformes | Charadriiformes |
| Familia | Laridae | Laridae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | 34,0 cm (13.4 in) |
| Envergadura | 35,2 cm (13.9 in) | 80,0 cm (31.5 in) |
| Peso | 51,85 g (1.83 oz) | 110,0 g (3.88 oz) |
| Dieta | -- | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. |
| Tamaño de la puesta | 1 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Charrán Ártico
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
Song & Call Comparison
Blue Noddy
Charrán Ártico
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
Geographic Range & Migration
Blue Noddy
Charrán Ártico
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Estado de conservación
Blue Noddy
Charrán Ártico
How to Tell Them Apart
Blue Noddy
Charrán Ártico
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
About These Birds
Blue Noddy
Blue Noddy is a tiny seabird, 25–28 cm, restricted to tropical Pacific atolls including Hawaii and Tuamotu. Pale blue-grey above, whitish below, with a distinctive pale cap. Piscivore; flutters low over lagoons picking prey from the surface. Near Threatened.
Charrán Ártico
El charrán ártico realiza la migración más larga de todos los animales, viajando cada año entre sus zonas de reproducción árticas y sus zonas de invernada antárticas, con una ida y vuelta de más de 70.000 km. Gracias a esta ruta, experimenta más horas de luz solar al año que cualquier otra criatura. Pequeño y ágil, pesa unos 100 g y se caracteriza por su pico y patas de color rojo sangre. Defiende agresivamente sus colonias de cría, llegando a …