Species:

Grey-headed Woodpecker (Picus canus)

Black Tern (Chlidonias niger)

Change species:
Main Images:
Length (cm):
25-26
22-24
Wingspan (cm):
38-40
64-68
Weight (gram):
120-160
60-86
Size group:
Thrush-size
Crow-size
Main Texts:
Appearance:

Green back. Head mostly grey with only a slim black moustache stripe, and underparts rather greyish too. Smaller than Green Woodpecker, and bill less heavy. Male with small red patch on forehead. Flight and movements more agile than Green Woodpecker.

Sound:

Mostly heard during the breeding season. Song similar to Green Woodpecker, but general tone is soft and melancholic. Phrases consists of series of 5-8 clear notes falling both in pitch and intensity, and with diagnostic ritardando at the end. Short "kek" uttered if excited. Rarely drums.

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

Appearance:

Unmistakable in breeding plumage, but otherwise easily confused with other marsh terns. Breeding plumage with black head and belly, but pale underwing and grey rump. When in immature and winter plumage it differs from Common and Arctic tern by smaller size and short, moderately forked tail, and from other marsh terns by slimmer body and wings (compared to White-winged tern), and relatively long, thin bill. Both immature and adult winter show dark front edge of wing, and characteristic dark shoulder patch at wing base. Back is dark in immature birds. Grey rump in all plumages. Flight usually different from Sterna-terns, with erratic dives for no apparent reason, and "aimless" change of direction. Note that when foraging over saltwater, flight becomes more Sterna-like.

Sound:

Moderately vocal. Flight call a more or less clear "kleck, or a disyllabic "klee-ake" with accented first syllable. Sometimes slightly rolling "klirr-eke", but never as much as in White-winged Tern. Also a slightly harsher "kreek", but not as raspy as in Whiskered Tern.

Flight call:

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:Ad Postma, Licence,Link.

Silhouette Group:
Tree-clinging
Silhouette
Gull-like
Silhouette
Several different images of the species
ImageImageImageImageImageImageImageImage
ImageImageImageImageImageImageImage
Several different sounds of the species
Error loading Flash for sound!
See sound file