Linnet (Linaria cannabina)
Gyrfalcon (Falco rusticolus)
In all plumages: Brown, unstreaked (or faintly streaked) back, grey bill, only faint wing-bars (or none), distinct white base to primaries and streaked throat. Both sexes with pale eye-ring and pale cheek patch. Breeding male distinct with slate grey head, cinnamon back, red chest and red forehead. Females and juveniles easily confused with Twite or Redpoll but note back and face pattern.
Sound:Flight-call a quick and "bouncing" "gig-gig" or "tchett-tchett". Most often disyllabic utterances, while Twite seems to vary more the number of syllables. Tone harder and more bouncing. Song a varied, sweet stream of contact calls, mimicry and trills with a staccato feel. Most easily recognized by the frequently interwoven, disyllabic contact calls.
Calls, 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
CCLargest 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:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSounds:Recorded by Andrew Spencer,http://www.xeno-canto.org ,CC license