Species:

Herring Gull (Larus argentatus)

Glossy Ibis (Plegadis falcinellus)

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Length (cm):
55-64
55-65
Wingspan (cm):
123-148
80-95
Weight (gram):
750-1440
530-768
Size group:
Bigger than a crow
Crow-size
Main Texts:
Appearance:

Large gull with deep chest, light grey back and heavy yellow bill with red spot (adult). Pinkish legs and black tipped primaries with white windows. Winter plumage with streaked head and neck. Develops grey mantle in 2.nd winter. Young birds may be difficult to distinguish from juvenile Greater- or Lesser Black-backed Gulls, and the species shows notable variation in both plumage and size. Juveniles generally shows darker head and less contrasting markings than Greater Black-back, and pale inner primaries (window), as opposed to the all black hand of young Lesser Black-backs.

Sound:

Quite vocal. A long and strong "ay-kay-kay-kay-kay" with fading strength commonly heard. A deep "ga-ga-ga" heard from anxious birds. All calls much deeper pitched than Common Gull. Difficult to distinguish from Lesser Black-backed Gull, but tone is less nasal.

Contact call and song:

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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

CC-sound:Jens Kirkeby, Licence,Link.

Appearance:

Resembles a big, black Curlew, but can only be confused with Bald Ibis. Differs from this by longer, slender neck, rounded and feathered head, long legs (trailing in flight) and heavier bill. Bare parts greyish, not red. Adults with glossy green wings. Immatures and birds in winter plumage with white-speckled head and neck. Head and legs droops slightly below horizontal plane in flight, leaving a "hunched" impression. Wing beats faster than herons of same size. May glide longer distances, but does not soar like Bald Ibis. Flight formation loose, diagonal or in single file with undulating movements.

Sound:

Generally silent away from breeding ground. Dry, crow-like "garr garr", may be heard occasionally in flight. At breeding ground various guttural grunts, and piping, hissing sounds.

Flightcall:

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

CC-sound:Stanislas Wroza, Licence,Link.

Similar species (image):
Silhouette Group:
Gull-like
Silhouette
Heron-like
Silhouette
Several different images of the species
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Several different sounds of the species
Error loading Flash for sound!
See sound file
Error loading Flash for sound!
See sound file