Appearance:

Build like a Magpie, but slightly more slender. Black hood, white throat, buff body and beautiful azure-blue wings and tail. Unmistakable if seen well. In unfavorable conditions the long tail in combination with the black hood and contrasting pale throat is diagnostic. Sexes alike. Flight similar to Magpie, but less staccato and more decisive. Behaves more like a Jay than a Magpie, and usually moves about in small groups.

Sound:

Most typical call is a high-pitched, finch-like, rapidly ascending "hvrriit" (similar to some Siberian Jay or Jay calls). Has a rich repertoire various social sounds of which some are more Magpie-like, like a dry and rolling "krrrrrrr".

Contact call, interaction calls:

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

Appearance:

Differs 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

Video IBC

Image search Flickr NB! May give other species

Sound search at Xeno-canto

Featherbase

CC

CC-sound:Stein Ø. Nilsen, Licence,Link.