Sedge Warbler (Acrocephalus schoenobaenus)
Arctic Tern (Sterna paradisaea)
Small and compact, brown warbler with strong supercilium and streaked back. Crown dark with faint streaking, contrasting with broad supercilium. Rump unstreaked and warmer brown than back and tail. Juveniles with faintly streaked chest. Long primary projection. Body shorter and more compact than Reed Warbler. Easiest Achrocephalus to see in the region. Often sings from exposed branch or reed, is inquisitive and not very shy.
Sound:Alarm call a hard "check". Anxiety call a dry and rolling "rrrrr". Song vigorous and varied. A mixture of musical sounds, expert mimicry and characteristic harsh and strident calls. Not as rhythmic and evenly paced as Reed Warbler, but varies tempo a lot.
Song:
Distribution:
Xeno-canto: map
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