Charrán Ártico vs Azulejo Oriental
Sterna paradisaea comparado con Sialia sialis
Side-by-Side Comparison
| Atributo | Charrán Ártico | Azulejo Oriental |
|---|---|---|
| Nombre científico | Sterna paradisaea | Sialia sialis |
| Orden | Charadriiformes | Passeriformes |
| Familia | Laridae | Turdidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | 34,0 cm (13.4 in) | 17,5 cm (6.9 in) |
| Envergadura | 80,0 cm (31.5 in) | 27,0 cm (10.6 in) |
| Peso | 110,0 g (3.88 oz) | 31,0 g (1.09 oz) |
| Dieta | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … |
| Tamaño de la puesta | 2-3 | 4-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Hábitats compartidos
Charrán Ártico only
Azulejo Oriental only
Ninguno
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.
Azulejo Oriental
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Song & Call Comparison
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.
Azulejo Oriental
A rich, melodious warbled 'chur-wi, tur-a-lee' song. Both sexes sing. Call is a soft, musical 'turee'. Song is gentle and flute-like, suggesting a small thrush. Given from exposed perch.
Geographic Range & Migration
Charrán Ártico
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Azulejo Oriental
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Estado de conservación
Charrán Ártico
Azulejo Oriental
How to Tell Them Apart
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
Azulejo Oriental
Males are vivid royal blue above with a rusty-red breast and white belly. Females are grey-blue with a paler rust breast.
Short, thin, dark bill
About These Birds
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 …
Azulejo Oriental
Azulejo oriental, 16-21 cm. Macho azul vivo en dorso, pecho castaño, vientre blanco; hembra más apagada. Habita prados, bordes de bosque y zonas rurales del este de Norteamérica. Insectívoro. Preocupación menor.