Species:

Black-headed Gull (Chroicocephalus ridibundus)

Black Grouse (Lyrurus tetrix)

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Length (cm):
34-37
40-55
Wingspan (cm):
86-99
65-80
Weight (gram):
200-400
750-1450
Size group:
Crow-size
Bigger than a crow
Main Texts:
Appearance:

Chocolate-brown hood in adult plumage (seemingly black at a distance), but head only with dark markings in winter and juvenile plumages. Underparts of inner primaries dark grey. First few primaries white with black tip, both on upper side of wing and under. Last character conspicuous in all plumages, but slightly less obvious in juveniles due to larger dark area of wing-tip. Slender-billed Gull and Bonaparte's Gull show similar white first primaries, but differs in long and slender head profile and white underparts of hand respectively.

Sound:

Quite vocal, especially at breeding ground. Distinct, harsh calls. A rasping "kreearr", and shorter, sharp warning calls; "kek".

Contact 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

Appearance:

Male differs from Capercaillie in smaller size, stockier build, curled outer tail-feathers and pure white under tail-coverts. Both sexes with white wing bars. Female more evenly speckled than Capercaillie, lacking brick coloured patches on breast an neck. Much less noisy when flushed than Capercaillie.

Sound:

Song: a far reaching, continuous, bubbly cooing, occasionally interrupted by a hissing "chooo-eee". Female calls with a nasal "go-go-go-gooo", ending on a falling drawn-out note.

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:Terje Kolaas, Licence,Link.

Similar species (image):
Similar species (sound):
Silhouette Group:
Gull-like
Silhouette
Grouse-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