Species:

Scops Owl (Otus scops)

Black Tern (Chlidonias niger)

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Length (cm):
19-20
22-24
Wingspan (cm):
53-63
64-68
Weight (gram):
60-120
60-86
Size group:
Thrush-size
Crow-size
Main Texts:
Appearance:

Small, starling sized owl. Smaller than Little Owl. Perches in upright position. Ear-tufts not prominent when relaxed, but gives angular shape to head. Plumage appears uniform, and colour varies from brown to rufous-brown. At closer range, whitish spots on shoulders and yellow eyes with dark surround, are visible. Appears long-winged in flight.

Sound:

Song: a slightly descending, short "klooit". The tone is resonant, clear and pure, unlike Little Owl. Calls uttered endlessly in a frequency of about 20 a minute. Resembles Midwife Toad (Alytes), but is clearly modulated in pitch, as opposed to the toads straight tone.

Song:

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See sound file


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:Willem Vergoossen, Licence,Link.

CC-photo:Viskens Michel, Licence,Link.

CC-photo:Eric SANSAULT, Licence,Link.

Appearance:

Unmistakable in breeding plumage, but otherwise easily confused with other marsh terns. Breeding plumage with black head and belly, but pale underwing and grey rump. When in immature and winter plumage it differs from Common and Arctic tern by smaller size and short, moderately forked tail, and from other marsh terns by slimmer body and wings (compared to White-winged tern), and relatively long, thin bill. Both immature and adult winter show dark front edge of wing, and characteristic dark shoulder patch at wing base. Back is dark in immature birds. Grey rump in all plumages. Flight usually different from Sterna-terns, with erratic dives for no apparent reason, and "aimless" change of direction. Note that when foraging over saltwater, flight becomes more Sterna-like.

Sound:

Moderately vocal. Flight call a more or less clear "kleck, or a disyllabic "klee-ake" with accented first syllable. Sometimes slightly rolling "klirr-eke", but never as much as in White-winged Tern. Also a slightly harsher "kreek", but not as raspy as in Whiskered Tern.

Flight call:

Error loading Flash for sound!
See sound file


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-sound:Ad Postma, Licence,Link.

Similar species (image):
Similar species (sound):
Silhouette Group:
Owls
Silhouette
Gull-like
Silhouette
Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file
Error loading Flash for sound!
See sound file