Swainson’s hawk
Buteo swainsoni
ok. 52 cmDorosły ptak
total length
total length
wzdłuż osi ciała · od końca dzioba do końca ogonaMeasurement: side
- Mass
- 693–1367 gGeneral range — Cornell; populacje północnoamerykańskie, bez rozdzielenia płci
Swainson’s hawk — size comparison
Swainson's hawk lives in open landscapes of western North America. It uses prairies, pastures and fields with scattered trees or small woodlands. After bree
Silhouette comparison
Length
wzdłuż osi ciała · od końca dzioba do końca ogonaReference values · details in the profiles
Total lengthScale in cm
0204060
approx. 52 cm
The scale compares the named dimensions. View direction and measurement points are given for each animal.
Swainson’s hawk — size comparison — facts and sources
Swainson's hawk lives in open landscapes of western North America. It uses prairies, pastures and fields with scattered trees or small woodlands. After breeding many birds undertake long migrations to South American wintering grounds, travelling in large groups.
While rearing young it catches mainly small mammals such as ground squirrels, mice and voles. Outside breeding, insects are extremely important: grasshoppers, crickets and dragonflies. It may catch them in flight or run after them on the ground.
It usually nests near the top of an isolated tree or in woodland beside a watercourse. It also uses tree strips beside crops. The pair defends the nest area against other predators; courtship involves circling, diving and the male climbing high again above the chosen site.