Species:

Ruff (Calidris pugnax)

Gyrfalcon (Falco rusticolus)

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Length (cm):
26-30
50-60
Wingspan (cm):
54-58
130-160
Weight (gram):
75-230
805-2100
Size group:
Thrush-size
Bigger than a crow
Main Texts:
Appearance:

Relatively large wader with long orange or greenish (juveniles) legs. Scaly back and medium long, slightly curved and heavy bill. Male in breeding plumage unmistakable with ruff in various colours and patterns. Characteristic upright posture and body shape with long neck, small head and humped back. Conspicuous white oval patches at upper base of tail. Notable difference in size between sexes (male largest). Often seen feeding in meadows and fields when away from breeding ground.

Sound:

Generally silent. Short, muted, nasal, mono or disyllabic grunts sometimes heard.

Social sound:

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-photo:A.J. Haverkamp, Licence,Link,

Sounds:Recorded by Jarek Matusiak,http://www.xeno-canto.org ,CC license

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:

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

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

Similar species (image):
Similar species (sound):
Silhouette Group:
Waders
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Raptors
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Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file