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

Appearance:

Easily confused with Shag when not in breeding plumage. Cormorant is larger, heavier built, has a thicker neck and less rounded profile. Head diagnostically wedge-shape, with the back of the head as the highest point. Bill never yellow (but yellow naked area at base of bill). Juveniles usually with whiter belly than Shag, and with less brown tinge. Behavioural differences from shag; often dives without jumping, more common in brackish water, often flies high, and often chooses higher ground or objects when perching. Slower wing-beats than Shag, with more separated primaries. Subspecies sinensis with larger gular poach angle (se fig.).

Sound:

Mostly heard at breeding ground. Coarse, vibrating calls "hahahahaharo". Also deep, rattling and creaking sounds.

Social interaction:

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

Sounds:Recorded by Anon Torimi,http://www.xeno-canto.org ,CC license