White and Boyce (1978) found that the Ungalik River had the highest cliff-nesting raptor population of any of the rivers they surveyed; the species they encountered included Golden Eagles (Aquila chrysaetos), Gyrfalcons (Falco rusticolus), and Rough-legged Hawks (Buteo lagopus
), along with a single Peregrine Falcon.
The numerous cliffs provided excellent nesting habitat for several avian predators: Rough-legged Hawk (Buteo lagopus), Golden Eagle (Aquila chrysaetos), Peregrine Falcon (Falco peregrinus), Gyrfalcon (Falco rusticolus), Raven (Corvus corax), Thayer's Gull (Larus thayeri), and Glaucous Gull (L.
On the nutritional biology of the Rough-legged Buzzard, Buteo lagopus Brunn, in Finnish Lapland.
Functional relationships between the Rough-legged Buzzard (Buteo lagopus
) and small rodents in the southern shrub tundra of Yamal (In Russian).
Predators known to raid nests included corvids at the egg stage (N = 7), Rough-legged Buzzards (Buteo lagopus
) (N = 1), and weasels (Mustela nivalis) (N = 2) at the chick stage.
Within a few hundred yards of our first camp I found a rough-legged hawk (Buteo lagopus
Muscovy duck Cairina moschata Mallard Anas platyrhynchos Greater scaup Aythya marila Tufted duck Aythya fuligula Common merganser Mergus merganser Smew Mergus albellus Falconiformes Common buzzard Buteo buteo Rough-legged hawk Buteo lagopus
Peregrine falcon Falco peregrinus Galliformes Common peafowl Pavo cristatus Domestic chicken Gallus gallus Charadriiformes (herring gull) Larus argentatus Strigiformes (eagle owl) Bubo bubo Passeriformes (Eurasian magpie) Pica pica All birds No.
The bird lived in an enclosure with another adult red-tailed hawk and an adult rough-legged hawk (Buteo lagopus
), both of which were healthy at that time.
Despite numerous indications that, lemmings had been abundant under the snow (many winter nests, extensive traces of grazing, and large amounts of lemming feces), lemming densities were rather low after snow melt, and the lemming specialists such as snowy owls (Bubo scandiaca), rough-legged buzzard (Buteo lagopus
) and pomarine skua (Stercorarius pomarinus--one unsuccessful nest) were not breeding in summer 2008 (Popov, 2009).
immer 9 Rough-legged hawk buse pattue Buteo Lagopus
71 Peregrine falcon faucon pelerin Falco peregrinus 6 Sandhill crane grue du Canada Grus canadensis 3 Black-bellied pluvier argente Pluvialis M plover squatarola American golden- pluvier bronze Pluvialis dominica 6 plover Semipalmated plover pluvier semipalme Charadrius 38 semipalmatus Ruddy turnstone tournepierre a Arenaria interpres M collier Semipalmated becasseau Calidris pusilla 59 sandpiper semipalmd Least sandpiper becasseau C.
Blood lactate concentration following 10 minutes of exercise has been shown to be a good predictor of fitness in rehabilitated red-tailed hawks (Buteo jamaicensis), rough-legged hawks (Buteo lagopus
), and great horned owls (Bubo virginianus).
The rough-legged buzzard (Buteo lagopus
) is the most common raptor in the LDNR.
peregrinus), golden eagles (Aquila chrysaetos), rough-legged hawks (Buteo lagopus
), and common ravens (Corvus corax).
B B Br + B Aquila chrysaetos B - - - + Pandion haliaetus - - - - - Falco peregrinus B B +(B) + B F.
Rough-legged hawks (Buteo lagopus
Pontoppidan), a species typically associated with more northerly regions, occurred in unusually high numbers on insular Newfoundland in the summers of 1988 and 1993, and some pairs nested in noncoastal areas on the island in 1993.