Arctic Tern (Sterna paradisaea)
Lapland Longspur (Calcarius lapponicus)
Differs 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
CCLarge and rather heavy bunting with yellow bill in all plumages. Head of breeding male brightly tricoloured in black, white and warm, rufous brown. Female similar to male, but much duller coloured, and with black parts speckled. All adults show rufous hind-neck. Juveniles show rufous greater coverts and may be confused with Reed Bunting. Differs from RB in yellow bill, dark spots on chest and cleaner markings on cheeks. Often runs along the ground like a mouse.
Sound:Song: a short, creaky, brittle phrase, rich in harmonics; "kril-trrlrtt-ti-trlllkrlltrrt". Somewhat reminiscent of Horned Lark, but without its hesitating intro. In form a bit like Snow Bunting, but much less clear tones. Call: A Snow Bunting-like "prrrrit", but tone harder. Also a Snow Bunting-like "pjuu". Other sounds: soft, whistling calls reminiscent of Bullfinch, but with richer harmonics.
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
CC