Bubo virginianus


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Noun1.Bubo virginianus - brown North American horned owlBubo virginianus - brown North American horned owl  
horned owl - large owls having prominent ear tufts
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Key words: Bubo virginianus, diet, environmental gradient, food niche breadth, Great Horned Owl, Oregon
Algunos roedores depredados por Bubo virginianus en estancia Chacayal, departamento Huiliches, provincia de Neuquen.
jamaicensis (n = 1) and Bubo virginianus (n = 1); whereas trematodes eggs were found in Falco peregrinus (n = 2) and B.
773) that were previously identified as Bubo virginianus are within the size range of Strix brea and are here referred to this species.
de campanario c STRIGIDAE 104 Bubo virginianus Buho orejon e 105 Ciccaba nigrolineata L.
Species of Confirmation Date Mass of Prey Sex of Predator of Predation (g) Prey Bubo virginianus 16 June 1996 134 Male (great horned owl) Lampropeltis getula 6 June 1996 108 Male (common kingsnake) Crotalus horridus 19 August 1996 140 Female (timber rattlesnake) Elaphe obsoleta 26 September 1996 169 Male (rat snake) Crotalus horridus 8 October 1996 118 Male (timber rattlesnake)
As an example, in a recent study that quantified survival of Great Horned Owl Bubo virginianus, the survival of young floaters was indistinguishable from that of adult territory owners in peak years of the snowshoe hare (Lepus americanus) cycle, whereas the reduction in survival in a low-hare year was 13.
1) Species 1993 1994 Sharp-shinned Hawk Accipiter striatus Vieillot 6 8 Northern Goshawk Accipiter gentilis Linnaeus 0 1 Rough-legged Hawk Buteo lagopus Pontoppidan 18 0 Boreal Owl Aegolius funereus Linnaeus 5 1 Great Horned Owl Bubo virginianus Gmelin 2 4 Northern Hawk-owl Surnia ulula Linnaeus 5 7 Merlin Falco columbarius Linnaeus 14 16 American Kestrel Falco sparverius Linnaeus 8 4 (1) Numbers include individuals seen outside of survey routes but within the study area.