Three-toed Woodpecker (Picoides tridactylus)
Iceland Gull (Larus glaucoides)
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:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCCC-sounds:Antero Lindholm, www.xeno-canto.org/247630.
All white wingtips like Glaucous Gull. Told apart from latter by rounded head, longer wings and shorter, more slender bill. Bill shorter than half the length of head, and lacks prominent hook. Primaries extends well past tail in sitting birds, and the whole rear of the bird seem slimmer. Eye bigger than in Glaucous Gull, with a more "gentle" expression. Comparison with nearby Herring Gulls fruitful. Iceland Gull often smaller than Herring Gull, and less heavy, while Glaucous Gull usually larger. Impression reinforced by Iceland's agile maneuvering.
Sound:Like Herring Gull, but tone sharper.
Distribution:Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CC