Species:

Cory's Shearwater (Calonectris diomedea)

Broad-billed Sandpiper (Calidris falcinellus)

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Length (cm):
45-46
16-17
Wingspan (cm):
105-125
37-39
Weight (gram):
800-1100
30-49
Size group:
Crow-size
Thrush-size
Main Texts:
Appearance:

A large shearwater with pale upperparts and heavy, yellowish bill. Large grey head. The grey neck forms a diagnostic, contrasting line from wing base to base of bill (most other shearwaters have white neck-sides). Armpits usually pure white. Underside of wings white, framed by black flight feathers. Flight action calm and distinct. Long glides alternates with 3-4 slow wingbeats. Wingtips always bent downwards, and wings slightly angled back. Often soars. Differs from Fulmar in dark tail, grey head, long, narrow wings and longer bill. The two subspecies C. diomedea and C. borealis, are somtimes treated as different species. Field identification of these usually impossible, and requires ideal conditions. Hand of borealis is darker due to no white fringes to primaries. In diomedea the white in the coverts extends in a white wedge into the hand, through the base of the primaries.

Sound:

Very vocal at breeding ground. Calls with a very nasal, comical, mewing "ke-kooeee", ending with falling pitch, like a releasing sigh or moan. Sometimes reltively pure, other times very hoarse and raucous.

At breeding ground (C. d. borealis):

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:James Bradley, Licence,Link.

CC-photo:Hans Verdaat, Licence,Link.

Appearance:

Can be mistaken for a Dunlin but differs in characteristic double supercilium, unmarked belly and shorter legs. Bill is thicker, almost swollen at base, and more distinctly bent at tip. Overall impression much more contrasty than Dunlin. Winter plumage with dark centres of tertials, and finely striped crown. Juveniles with white V-shaped markings on back, similar to Little Stint. Wing bars and tail markings resembles Dunlin in flight. Moves relatively slow when feeding.

Sound:

Distinct contact call. A trilling "drrroiiit" with a peculiar timbre, ending with a rapid rise of pitch. Song often preceded by the contact call, which then fuses into a continuous vibrating trill.

Song:

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

CC-sound:Patrik Åberg, Licence,Link.

Similar species (image):
Similar species (sound):
Silhouette Group:
Gull-like
Silhouette
Waders
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