Great Grey Owl (Strix nebulosa)
Little Gull (Hydrocoloeus minutus)
Approaching Eagle Owl in size, but shape more elongated, with head being extremely large. Differs from Ural Owl in yellow eyes, concentric markings in facial disks, bold white bars between eyes and black "beard". Wings and tail long. Characteristic pale patch at base of primaries shows in flight, but the species leaves an overall darker impression than Ural Owl. Tail with dark terminal band.
Sound:Song: Cyclic, repetitive, very deep calls rising and falling in volume. Accented start and end of each "hooh". As the call fades away in volume, the speed accelerates. Sometimes disyllabic "ho-ho,ho-ho,ho-ho,ho-ho".
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
CCVery small gull with rounded wings and almost tern-like appearance. Underwing black, with broad white trailing edge. Lacks Black-headed Gull's conspicuous white outer primaries. Adult summer plumage with black (not chocolate) hood, that reaches far down on hind-neck. Winter plumage without hood, but with dark cheek-patch and dark cap. Juveniles differs from juvenile Kittiwake in slender body, dark cap, dark patch at trailing base of underwing, faint dark wing-bar and shorter wings. Can, with experience, be identified by fluttering, butterfly-like flight at long distance.
Sound:Repertoire of short, tern-like, hard calls, uttered individually, or in series. E.g. "kep" or "krrk". Also a diagnostic, gull-like, sharp and bouncing "ka-tee,ka-tee,ka-tee", with second syllable rising in pitch.
Contact 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
CCSounds:Recorded by Patrick Åberg,http://www.xeno-canto.org ,CC license