Species:

Sandwich Tern (Thalasseus sandvicensis)

Booted Eagle (Hieraaetus pennatus)

Change species:
Main Images:
Length (cm):
36-41
45-53
Wingspan (cm):
95-105
100-121
Weight (gram):
215-275
510-1250
Size group:
Crow-size
Bigger than a crow
Main Texts:
Appearance:

Large tern with black bill, with yellow tip (adults). Bill all black in juveniles. Long black cap and shaggy crest. Generally leaves a much whiter impression than other terns in the region (except Roseate Tern). Adult summer: Yellow bill-tip. Tail pure white, and upperparts pale grey. Outer primaries darker than rest of wing, and contrast increases in worn plumage. Broad white trailing edge to inner wing. Underside of primaries with faint narrow dark trailing edge. Forehead white in adult winter and first winter plumage. Juveniles: scaly upperparts and dark bill. Less evenly coloured than juvenile Gull-billed Tern. First winter birds similar to juveniles, but back purer grey and bill shorter. Can be mistaken for Gull-billed Tern, but note different profile. Flight powerful with evenly narrow wings and a front-heavy appearance, due to the long head and bill. Often dives from high above the surface and stays under water longer than Common and Arctic T.

Sound:

Contact call a sharp and grating "keeree-eek". Often compared to the pressing of amalgam into a tooth.

Contact call:

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

Featherbase

CC

CC-photo:Paul:Ritchie, Licence,Link.

CC-sound:Peter Boesman, Licence,Link.

Appearance:

Buzzard-sized eagle with long tail, slender build and white patches at base of wings. Occurs in pale and dark morph. Pale birds may be confused with much larger Egyptian Vulture, but note short. wedge-shaped tail of latter. Dark birds harder to identify, but differ from Marsh Harrier by flat, not raised wings, from Black Kite by round, not forked, tail and less arched wings. Buzzards have 5 (not 6) "fingers", shorter tail and more plump build. For separation from Bonelli's Eagle see that species.

Sound:

Very vocal in breeding season. Most often heard is a quite soft, wader-like series of "kli-kli-kli-kli-kli-kli".

Contact 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

CC-sound:Patrick Franke, Licence,Link.

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