Hawk-Owl (Surnia ulula)
Snowy Owl (Bubo scandiacus)
Hawk-like, partly diurnal owl with long tail and barred underparts. Plumage gives black and white impression. White face framed in bold, vertical black stripes. Eyes bright yellow. Wings fairly short, but not rounded. Tail long and graded. Flight pattern hawk-like, with rapid series of bursting wing-beats followed by glides. Often perched in the open, exposed in tree-tops.
Sound:Seldom heard outside breeding ground. Alarm call a sharp, merlin-like "kwitt kwitt kwitt", or "ki-ki-ki". Song a 10 second rapid pulse of shivering notes with a bubbling quality. Rising slightly in pitch and then slowly falling.
Song:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCLargely unmistakable. Male almost pure white with black dots. Female and juveniles white with heavy black barring, and may seem grey at a distance. Juveniles more finely barred than adult females, giving them a greyer appearance, with white neck and face. Body barrel-shaped, head small and rounded. Wing-tips more pointed than in other owls. Flight action both buzzard and owl-like, with surprising agility. Note that several species of owls may seem completely white to the untrained eye when suddenly appearing in car headlights etc.
Sound:Song consists of single utterances or series of "aooo", recalling Great Black-backed Gull, and is far carrying. Male warning call a deep and harsh "groat grat grat", with accented endings of each syllable. Female warning call higher pitched. Also various other high pitched calls.
Alarm call:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-sound:Niels Krabbe, Licence,Link.