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Radius - End Widths

 

 

 

 

List of measurements of end width Radius for the different Species of Falconiformes and Strigiformes in British Columbia

 

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Species - Proximal End mm Species - Distal End mm
       
Flammulated Owl 2 - 3 Flammulated Owl 2 - 4
Northern Pygmy-Owl 2 - 3 Northern Pygmy-Owl 2 - 4
American Kestrel 2 - 4 American Kestrel 2 - 5
Northern Saw-whet Owl 2 - 4 Northern Saw-whet Owl 3 - 4
Sharp-shinned Hawk 2 - 5 Sharp-shinned Hawk 3 - 5
Eastern Screech-Owl 3 - 4 Merlin 3 - 5
Burrowing Owl 3 - 4 Boreal Owl 3 - 5
Boreal Owl 3 - 4 Western Screech-Owl 4 - 6
Copper's Hawk 3 - 5 Eastern Screech-Owl 4 - 6
Merlin 3 - 5 Burrowing Owl 4 - 6
Western Screech-Owl 3 - 5 Copper's Hawk 4 - 7
Prairie Falcon 4 - 6 Northern Harrier 4 - 8
Barn Owl 4 - 6 Northern Hawk Owl 5 - 7
Northern Hawk Owl 4 - 6 Long-eared Owl 5 - 7
Long-eared Owl 4 - 6 Prairie Falcon 5 - 9
Short-eared Owl 4 - 6 Short-eared Owl 6 - 8
Northern Harrier 5 - 8 Peregrine Falcon 6 - 9
Northern Goshawk 5 - 8 Barn Owl 6 - 9
Peregrine Falcon 5 - 9 Red-tailed Hawk 6 - 10
Spotted Owl 6 - 7 Northern Goshawk 7 - 9
Swainson's Hawk 6 - 8 Swainson's Hawk 7 - 10
Rough-legged Hawk 6 - 8 Rough-legged Hawk 7 - 10
Barred Owl 6 - 8 Gyrfalcon 7 - 10
Osprey 6 - 9 Barred Owl 7 - 10
Red-tailed Hawk 6 - 10 Spotted Owl 8 - 10
Ferruginous Hawk 7 - 9 Osprey 9 - 11
Great Gray Owl 7 - 9 Ferruginous Hawk 9 - 12
Gyrfalcon 7 - 10 Great Horned Owl 9 - 12
Great Horned Owl 7 - 10 Great Gray Owl 9 - 12
Snowy Owl 8 - 11 Golden Eagle 10 - 17
Bald Eagle 10 - 13 Snowy Owl 11 - 14
Golden Eagle 11 - 15 Bald Eagle 14 - 17


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