Appearance:

Fairly small shearwater with jet black upperparts, and pure white underparts. Armpits often with dark markings. White notch behind wing base. Distinguished from Yelkouan and Balearic Shearwater by the always pure white vent. Faint, white wedge behind ear coverts. Legs do not protrude behind the tail. Flight typical of family: Rapid, shallow and stiff wing-beats, with alternating glides. Sometimes with only the primaries moving.

Sound:

Vocal at breeding ground. The call is sharp and wailing, and consist of two parts. A drawn, "inhalation", is immediately followed by a trisyllabic "ka-ya-ya".

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

CC

CC-sound:david m, Licence,Link.

CC-photos:Jean-Pierre R., Licence,Link.

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,