Appearance:

At a distance quite similar to Guillemot. Bill deep, rectangular and with white markings. Flanks unstreaked and armpits white. Tail longer than in Guillemot, with legs not protruding behind tail in flight. Tail often held clear of the surface when swimming. Cheeks white in winter, with broad, short and black eye stripe. Neck collar short and wide. Upperparts blacker, and underparts whiter than Guillemot. Heavy neck, head and bill, in combination with the long tail, gives it a front heavy, and different profile from Guillemot, whether perched, swimming or flying. Top of head in line with tip of uptilted bill when swimming.

Sound:

Very coarse and deep voice. Grunting or snore-like, with little phrasing. Mostly heard at breeding ground, but also sometimes at sea.

Contact call:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

Sounds:Recorded by Simon Elliott,http://www.xeno-canto.org ,CC license

Appearance:

Very large brown owl. Usually identifiable by its size and brown tones alone. Long ear-tufts usually pointing to the sides (depending on mood). Face differs from Long-eared Owl in having rather dark and brownish facial disks, and much less prominent light eye-brows. Eyes orange. Lacks the pale base of primaries of Great Grey Owl. Flight powerful and more raptorlike than other owls, interspersed with long glides. Ear-tufts foldable, and less visible in flight.

Sound:

Song a very deep "ooho". Continuous, but disyllabic. First syllable emphasized and second syllable rapidly falling in pitch. Quite similar to Long-eared Owl, but deeper and with more pronounced pitch change at end ("release"). Frequency of calls also diagnostic: Typically 8-10 seconds between each "ooho" (2-3 seconds in Long-eared Owl ). Audible at 1 - 4 km distance. Both sexes sing. Has a rich repertoire of contact/alarm calls like a hoarse, heron-like "kreaaak", and an excited, bubbling "hohohohoh".

Song:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:hehaden, Licence,Link,

CC-photo:martino.pizzol, Licence,Link,