Species:

Great Grey Owl (Strix nebulosa)

Crested Lark (Galerida cristata)

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Length (cm):
65-70
17-17
Wingspan (cm):
134-158
29-38
Weight (gram):
500-1500
37-55
Size group:
Bigger than a crow
Sparrow-size
Main Texts:
Appearance:

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:

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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-sound:Gunnar Fernqvist, Licence,Link.

Appearance:

Gives a bulkier impression than Skylark, with longer bill, heavier head and body, and broader tail. In flight broad wings and short tail prominent. Lacks white edges on wings. Orange buff underwings. Crest on rear crown spiky and uneven. Outer tail feathers rufous, not white. Occasional song-flight. Slower wing-beats than skylark. Very similar to Thekla Lark, and identification can be very difficult in areas where both species occur. The much used streaked-breast character is not always relevant because of regional variations. Then habitat, behaviour and voice becomes important to identification, and a combination of structural and plumage character should be used. Bill appears curved (because of straight lower mandible), crest spikier than Thekla, belly deeper, back less heavily streaked , tail coverts less rusty-brown, upper breast usually with less defined streaking. Eye-stripe buffish, rather than white behind eye. Less prone to perch on top of scrubs or bushes than Thekla, and prefers lower altitude .

Sound:

Song: a mix of long whistling, fluting sounds, trills and mimicry. Full song quite similar to Thekla Lark. Rudiments of song are often heard and includes more melancholic whistling than Thekla. Contact call/alarm-call: May be the best characteristic to separate it from Thekla Lark where both species occur. Crested Lark call with 2-4 syllables, of which one is extended and fairly flat. The phrase has a less "bouncing" feel to it than Thekla Lark, lacking the accented rapid rise and fall in pitch of the extended note of Thekla Lark.

Song:

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:Peter Boesman, Licence,Link.

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