Grey-headed Chickadee (Poecile cinctus)
Arctic Tern (Sterna paradisaea)
Like a Willow Tit with dark brown hood, brown back and warm brown flanks. Fluffy overall look, with very large dark bib. Summer plumage often looks "newly washed" and untidy. Tail slightly longer than in Willow Tit, and flight is less undulating. Not shy.
Sound:Voice quite similar to Willow Tit. Song: Often vibrating or rasping notes repeated in Willow Tit-like structure, gradually falling in pitch "trrrrrr trrrrr trrrrr". Call: Nasal Willow Tit-like "chee chee chee" , "ti ti chee". Other sounds: Chirping, bubbling sounds resembling Willow Tit, various other high pitched sounds.
Song:
Distribution:
Wikipedia: map (se also Xeno-canto below)
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCDiffers from Common Tern in shorter head, and blood-red bill. Legs shorter, but tail streamers longer (extends well past wings in sitting birds). Underparts of primaries with sharply bordered dark trailing edge (diffusely bordered in Common Tern). Both primaries and secondaries transparent to sunlight. Crest less apparent than in Common Tern and underside greyer. Cheeks white just below the black cap, often in contrast to grey lower cheeks. Juveniles lacks buff coloured back.
Sound:Similar to Common Tern but higher pitched. Typical call a series of high pitched "tip-tip-tip", and longer, ringing, high-pitched "kriiiiii" calls. The drawn out "kree-aaahh" call falls less distinctly in pitch than Common Tern.
Calls:
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