Penduline Tit (Remiz pendulinus)
Black Tern (Chlidonias niger)
A small, tit-like passerine with brown back, grey head and diagnostic black mask. Plumage comparable to Red-backed Shrike, but build and behaviour very different. Male with broader mask than female. Juveniles with pale, uniform plumage, lacking mask altogether. May be confused with Bearded Reedling if mask not seen, but note shorter tail with no graduation. Tit-like behaviour, but less inquisitive.
Sound:Call a sharp clear high pitched whistle "pju-eee-uu", with the middle part accented and with a raised pitch Or just an all descending whistle "pjuuuuuuu".
Contact call:
Distribution:
Xeno-canto: map
Ecology:Birdlife ecology
Links:
Observation.org Latest observations
Image search Flickr NB! May give other species
CCSound recording:Recorded by Edmunds Racinskis
Unmistakable in breeding plumage, but otherwise easily confused with other marsh terns. Breeding plumage with black head and belly, but pale underwing and grey rump. When in immature and winter plumage it differs from Common and Arctic tern by smaller size and short, moderately forked tail, and from other marsh terns by slimmer body and wings (compared to White-winged tern), and relatively long, thin bill. Both immature and adult winter show dark front edge of wing, and characteristic dark shoulder patch at wing base. Back is dark in immature birds. Grey rump in all plumages. Flight usually different from Sterna-terns, with erratic dives for no apparent reason, and "aimless" change of direction. Note that when foraging over saltwater, flight becomes more Sterna-like.
Sound:Moderately vocal. Flight call a more or less clear "kleck, or a disyllabic "klee-ake" with accented first syllable. Sometimes slightly rolling "klirr-eke", but never as much as in White-winged Tern. Also a slightly harsher "kreek", but not as raspy as in Whiskered Tern.
Flight call:
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