Horned Lark (Eremophila alpestris)
Arctic Tern (Sterna paradisaea)
Breeding plumage: Yellow face with broad black moustache stripes and black lores. Black forecrown and thin black horns. Black breast band with blunt vertical extension towards throat (sometimes connects to moustache stripes). Black tail with white sides. Juveniles covered in small pale spots with only faint facial markings. May be confused with juvenile Skylark, but note shorter bill and yellowish face of young Shore larks.
Sound:Song a stream of thin and tinkling, squeaking notes with a recurring, drawn, ringing and slightly ascending chirp. Timbre resemblant to Lapland Bunting. Often given from high in the air, being difficult to locate. More hesitantly when given from the ground with a stumbling introduction. Flight call quite similar to Meadow Pipit's "tseep" call, but less anxious.
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