Appearance:

Small, compact diving duck with short neck and rounded head. Males with diagnostic tuft, white flanks and black back. Females with rudimentary tuft, mostly dark brown body, with varying white feathering at base of bill. Females in winter showing much white at base of bill are easily mistaken for Scaup, but note hint of small tuft, smaller head, broad black nail of bill and no white cheek spots. Both sexes show long, white wing stripes in flight.

Sound:

Male display sound: High pitched short whistling-like noises, "pjuu-uu", not very audible. Both sexes have harsh "ahrrrr" calls like other diving ducks, sometimes with a crow-like quality.

Female:

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

Sounds:Recorded by Stein Ø. Nilsen,http://www.xeno-canto.org ,CC license

Appearance:

Small, crepuscular, stocky heron with short legs. Adults unmistakable with black cap, black back, grey wings and white underparts. Immature less distinct, and may be confused with immature Squacco Heron, Little Bittern or Bittern. Differs from all these in distinct white spots covering both wings and back. Belly and breast are more widely covered in coarse streaking, not just the sides or upper chest. Legs just barely protrudes behind tail in flight.

Sound:

Most commonly hear call is a nasal, soft croaking "roack", like cross between Raven and frog.

Flight 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