Читать книгу Birds of New Hampshire & Vermont Field Guide - Stan Tekiela - Страница 28
Оглавлениеin flight
Common Raven
Corvus corax
YEAR-ROUND
Size: | 22-27" (56-69 cm) |
Male: | Large all-black bird with a large black bill, a shaggy beard of feathers on the throat and chin, and a large wedge-shaped tail, as seen in flight. |
Female: | same as male |
Juvenile: | same as adult |
Nest: | platform; female and male construct; 1 brood per year |
Eggs: | 4-6; pale green with brown markings |
Incubation: | 18-21 days; female incubates |
Fledging: | 38-44 days; female and male feed young |
Migration: | non-migrator; moves around to find food |
Food: | insects, fruit, small animals, carrion |
Compare: | Larger than its cousin, the American Crow, which lacks shaggy throat feathers. Glides on flat, outstretched wings unlike the slight V-shaped wing pattern of the American Crow. Listen for the Raven’s deep, low raspy call to distinguish it from the higher-pitched American Crow. |
Stan’s Notes: Considered by some people to be the smartest of all birds. Known for its aerial acrobatics and long swooping dives. Sometimes scavenges with crows and gulls. A cooperative hunter that often communicates the location of a good source of food to other ravens. Complex courtship includes grabbing bills, preening each other and cooing. Most begin to breed at 3-4 years. Mates for life. Uses the same nest site for many years.