Species:

Gyrfalcon (Falco rusticolus)

Western Orphean Warbler (Curruca hortensis)

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Length (cm):
50-60
15-15
Wingspan (cm):
130-160
20-25
Weight (gram):
805-2100
16-25
Size group:
Bigger than a crow
Sparrow-size
Main Texts:
Appearance:

Largest falcon. Heavily built. Grey upperparts and white, speckled underparts. Juveniles with browner plumage than adults, blue-grey legs and longitudinal streaking below. Diffuse moustache-stripe, and the whole head seems dark at distance, lacking a defined cap. Rounder and broader wings, longer tail and bulky belly distinguishes it from Peregrine. Underside of wings with dark coverts in contrast to pale base of flight-feathers. Extremely powerful, but slower flight action than Peregrine.

Sound:

A coarse, drawn out, Peregrine-like "kaaawt", with emphasis on ending, is repeated in series. Much slower paced than in small falcons, and deeper and with different attack than in Peregrine. Also shorter, coarse warning-calls.

Alarm call:

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Distribution:

Xeno-canto: map

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 Andrew Spencer,http://www.xeno-canto.org ,CC license

Appearance:

Large Sylvia with dark hood and pale iris (adult birds). Lacks red orbital ring of Sardinian Warbler. Tertials and coverts without pale fringes. Very similar to Eastern Orphean Warbler (S. crassirostris), but generally the distribution of the two do not overlap. Typical birds also show some differences in plumage like; no dark centres to under tail coverts and warm buff underparts, flanks and vent (variable). The border between the dark hood and grey neck is more diffuse, the back is browner and the bill slightly shorter. Young vagrants with poorly developed characters may be inseparable from S. crassirostris by appearance. Both species differ from Lesser Whitethroat by; stronger bill, no white crescents around eye and darker upper tail. Movements less agile than smaller congeners.

Sound:

Alarm call a short and sharp "tek" recalling Blackcap, often given in series. Also a dry, rasping "turrrr". Both calls are more or less identical to S. crassirostris. Song much more different from latter, but timbre of fluting sounds is similar, recalling that of Blue Rock Thrush. Overall the song is simpler than S. crassirostris, with shorter phrases, longer pauses and a more restricted register. Motifs consists largely of pleasant fluting, often dominated by alternation between two notes, and are often repeated with small variations.

Song:

Error loading Flash for sound!
See sound file


Distribution:

Xeno-canto: map

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:Agustín Povedano, Licence,Link.

CC-photo:Jorrit Vlot, Licence,Link.

Similar species (sound):
Silhouette Group:
Raptors
Silhouette
Warbler-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