Appearance:

Differs from Arctic Tern in longer head, and more orangy red, rather than deep red, bill. Tip of bill usually black. Legs longer, but tail streamers shorter than AT. Underparts of primaries with diffusely bordered dark trailing edge (sharply bordered in Arctic Tern). Upper side of primaries with dark wedge (less apparent in winter). Secondaries opaque. Crest more apparent than in Arctic Tern and underside whiter. Juveniles with buff back.

Sound:

Similar to Arctic Tern but deeper. Lacks latter's high pitched "tip-tip-tip" call, and the drawn out "kree-aaahh" call falls more distinctly in pitch.

Call:

Distribution:

Wikipedia: map (se also Xeno-canto below)

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Eetu Paljakka, Licence,Link.

Appearance:

In all plumages recognized by its long tail, call, and choice of habitat (reeds). Male unmistakable, with bluish grey head, yellow bill and black drooping moustache. Females and juveniles mostly plain, yellow-brown with whitish underparts and no moustache. Young females with dark bill, young males with yellow bill and black lore. Juveniles with black patch on back and black outer tail feathers. Flight whirring and undulated. Sometimes fans tail in flight with twisting motions.

Sound:

More often heard than seen. Usually identified by contact call; a ringing, explosive "tschin" with a characteristic "dirty" timbre. Also a hard and very short "pit", often mixed with the previous. Song a primitive, 3-syllable phrase, consisting of contact call-like sounds.

Contact call:

Distribution:

Xeno-canto: map

Ecology:

Birdlife ecology

Links:

Observation.org Latest observations

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-photo:sussexbirder, Licence,Link.