Cuervo Americano vs Charrán Ártico
Corvus brachyrhynchos comparado con Sterna paradisaea
Side-by-Side Comparison
| Atributo | Cuervo Americano | Charrán Ártico |
|---|---|---|
| Nombre científico | Corvus brachyrhynchos | Sterna paradisaea |
| Orden | Passeriformes | Charadriiformes |
| Familia | Corvidae | Laridae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | 45,0 cm (17.7 in) | 34,0 cm (13.4 in) |
| Envergadura | 99,0 cm (39.0 in) | 80,0 cm (31.5 in) |
| Peso | 450,0 g (15.87 oz) | 110,0 g (3.88 oz) |
| Dieta | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. |
| Tamaño de la puesta | 3-7 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Hábitats compartidos
Cuervo Americano only
Charrán Ártico only
Cuervo Americano
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
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
Cuervo Americano
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
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
Cuervo Americano
North America from southern Canada through the United States to northern Mexico.
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
Cuervo Americano
Charrán Ártico
How to Tell Them Apart
Cuervo Americano
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
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
Cuervo Americano
El cuervo americano (Corvus brachyrhynchos) es un córvido grande, totalmente negro, ampliamente distribuido en Norteamérica. Altamente inteligente y adaptable, habita en bosques, zonas agrícolas y entornos urbanos. Omnívoro con capacidades para resolver problemas y hábitos sociales complejos. Familia Corvidae.
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 …