French: Épervier de Cooper German: Rundschwanzsperber Spanish: Gavilán de Cooper
Bordentown, New Jersey, USA
S Canada and most of USA S to NW Mexico. Winters from N USA to Central America as far S as Costa Rica, occasionally S to Colombia.
37–47 cm; male 276–388 g (breeding), female 461–701 g (breeding); wingspan 64–87 cm. Near N edge of breeding range, size varies from W to E, with... read more
Most common call a series of nasal "cak" notes given by both sexes during courtship or as alarm... read more
Breeds in deciduous, coniferous and mixed forests, often with dense canopy cover. Deciduous... read more
Food and feeding
Overall, feeds primarily on medium-sized birds, but small mammals important in some areas, and reptiles occasionally taken. Proportion of... read more
Eggs in first clutches normally laid from early Apr–late May; slightly earlier at S limits, e.g. Florida, Texas and N Mexico. Pairs... read more
Mostly migratory in N third of range, but small numbers can be found in winter as far N as species... read more
Status and conservation
Not globally threatened (Least Concern). CITES II. Widespread and common; perhaps one of commonest hawks in W USA. Seriously affected by organochlorines in 1940s and 1950s,... read more
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