Short-toed Lark (Calandrella brachydactyla)
Arctic Tern (Sterna paradisaea)
Small, compact lark with finch-like bill. 30% smaller than Skylark. Primaries almost completely covered by tertiaries, as opposed to Lesser Short-toed Lark. Upperparts typical lark-like, while underparts are almost unstreaked. Most individuals shows small, black shoulder patch. Bill deep, but pointed. Base colour variable, but western birds usually warmer brown than eastern. Lacks crest. Crown is rather flat (often rufous) and head squarish. Tail black with buff centre and pure white outer feathers. Often forms finch-like flocks when not breeding. Flight moderately undulating.
Sound:Contact call a dry, short and House Sparrow-like "chirrrp", with a high-pitched component. Shorter than Skylark, and crisper and straighter than Lesser Short-toed Lark. Song usually performed high in the air, but can also be heard from the ground. 2 types of song. Either in short phrases with a typical duration of 1-3 seconds each, with stuttering introduction, and falling cadence. Other song type more confusing and harder to identify, consisting of a continuous stream of energic improvisation. Listen for interwoven contact calls, and lack of Lesser Crested Lark calls. Frequently mimicks other species.
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