Species:

Three-toed Woodpecker (Picoides tridactylus)

White-winged Tern (Chlidonias leucopterus)

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Length (cm):
21-22
20-23
Wingspan (cm):
32-35
63-67
Weight (gram):
57-74
50-75
Size group:
Thrush-size
Crow-size
Main Texts:
Appearance:

Shows no red patches in any plumages. Only woodpecker in WP with barred flanks. White stripes extends from behind eye to back and from base of bill to scapulars, but head is generally much darker than in other pied woodpeckers. Crown in male yellow, in female speckled white.

Sound:

Drumming powerful and slow, with each beat clearly distinguishable. Most similar to Black Woodpecker but not as long (1 - 1.4 seconds). Accelerated ending (just the last few beats). Contact call similar to Great Spotted, but deeper and softer. Not very vocal.

Drumming:

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-sounds:Antero Lindholm, www.xeno-canto.org/247630.

Appearance:

Breeding adult easily identified by white tail/rump combined with jet black under wing coverts and silvery upper wing. Immature with brownish back contrasting with pale, silvery upper wings and pale rump. Broad white collar, and lacks dark breast patch of immature Black Tern. Adult winter most liable to confusion with other terns, but upperparts much paler than Black Tern. Contrasting dark outer primaries and secondaries to rest of wing. Often retains some black under coverts even in winter which is diagnostic if seen. Slightly more compact than Black Tern and often recalls Little gull in shape. Bill noticeably shorter and thinner than in Whiskered Tern.

Sound:

Mostly silent away from breeding ground. Most diagnostic call a dry, rolling "krrrrrr-ta-ta" where the rolling is followed by one or two accentuated syllables, or just simply "krrrrrr". Used in excitement.

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

CC

CC-sound:Marco Dragonetti, Licence,Link.

CC-photo:Dick Hoek, Licence,Link.

CC-photo:Lars Buckx, Licence,Link.

Similar species (sound):
Silhouette Group:
Tree-clinging
Silhouette
Gull-like
Silhouette
Several different images of the species
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Several different sounds of the species