American Crow vs Secretário
Corvus brachyrhynchos comparado com Sagittarius serpentarius
Side-by-Side Comparison
| Atributo | American Crow | Secretário |
|---|---|---|
| Nome científico | Corvus brachyrhynchos | Sagittarius serpentarius |
| Ordem | Passeriformes | Accipitriformes |
| Família | Corvidae | Sagittariidae |
| Estado de conservação | Least Concern | Endangered |
| Comprimento | 45,0 cm (17.7 in) | 130,0 cm (51.2 in) |
| Envergadura | 99,0 cm (39.0 in) | 210,0 cm (82.7 in) |
| Peso | 450,0 g (15.87 oz) | 3700,0 g (130.51 oz) |
| Dieta | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with … |
| Tamanho da postura | 3-7 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Secretário
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
American Crow
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.
Secretário
A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Secretário
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Estado de conservação
American Crow
Secretário
How to Tell Them Apart
American Crow
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
Secretário
Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.
Short, strong, hooked greyish bill with a yellowish cere
About These Birds
American Crow
O Corvo-americano (Corvus brachyrhynchos) é um dos corvos mais reconhecíveis e inteligentes da América do Norte, pertencente à família Corvidae. Amplamente distribuído por toda a América do Norte, habita uma grande variedade de habitats, incluindo florestas, campos agrícolas, subúrbios e centros urbanos. Mede aproximadamente 40-53 cm e pesa entre 300-600 g. A plumagem é completamente preta com reflexos iridescentes. Onívoro altamente adaptável, alimenta-se de insetos, frutos, carrion, lixo e praticamente qualquer material comestível disponível. Exibe comportamento social complexo, incluindo vida …
Secretário
The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.