Species:

Steller's Eider (Polysticta stelleri)

Night Heron (Nycticorax nycticorax)

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Length (cm):
43-47
58-65
Wingspan (cm):
70-76
105-112
Weight (gram):
670-1000
500-800
Size group:
Crow-size
Crow-size
Main Texts:
Appearance:

Diagnostic, squarish head profile with flat crown, high bill base, steep forehead in all plumages. Male unmistakable with white and orange-buff underparts, white head with dark eye-patch, black collar and black back. Female mottled brown, but distinguished by head profile and blue wingbar with white edges. Identifiable at a distance by its habit of holding the tail raised clear of the water like a dabbling duck.

Sound:

Male seldom heard. Display sound probably a clear whistle rising slightly and then falling in pitch, a bit like Golden Plover. Female more noisy with indistinct guttural sounds.

Display-calls:

Error loading Flash for sound!
See sound file


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

CC

Sounds:Recorded by Andrew Spencer,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:

Error loading Flash for sound!
See sound file


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

Similar species (image):
Similar species (sound):
Silhouette Group:
Duck-like
Silhouette
Heron-like
Silhouette
Several different images of the species
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Several different sounds of the species