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− | ;Sula sula | + | ;[[:Category:Sula|Sula]] sula |
Previous name: ''Sula piscator'' | Previous name: ''Sula piscator'' | ||
[[Image:1568red_footed_boobyDSC_00101_by_Neil.jpg |thumb|550px|right|Photo by Neil<br/>White phase bird<br/>Location: Oahu, Hawaii, USA]] | [[Image:1568red_footed_boobyDSC_00101_by_Neil.jpg |thumb|550px|right|Photo by Neil<br/>White phase bird<br/>Location: Oahu, Hawaii, USA]] | ||
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*Yellow was on head and neck in some populations | *Yellow was on head and neck in some populations | ||
Some Pacific populations have most of the tail black, while in the Caribbean and around Australia, the tail is white. | Some Pacific populations have most of the tail black, while in the Caribbean and around Australia, the tail is white. | ||
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====Juvenile==== | ====Juvenile==== | ||
Birds are similar to the brown color phase, but lack the pink base to the bill. They start out with the bill all gray and feet that are dusky to orange; the bill then turn two-colored with dark tip and lighter inner part that may be fleshy. The juvenile also have the head and neck lighter than the upperside of the wing, and compared with e.g., juvenile [[Brown Booby]] has darker underwing lacking the white areas seen in the latter. | Birds are similar to the brown color phase, but lack the pink base to the bill. They start out with the bill all gray and feet that are dusky to orange; the bill then turn two-colored with dark tip and lighter inner part that may be fleshy. The juvenile also have the head and neck lighter than the upperside of the wing, and compared with e.g., juvenile [[Brown Booby]] has darker underwing lacking the white areas seen in the latter. | ||
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==Taxonomy== | ==Taxonomy== | ||
Three subspecies, ''sula'', ''rubripes'', and ''websteri''. | Three subspecies, ''sula'', ''rubripes'', and ''websteri''. | ||
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==Habitat== | ==Habitat== | ||
Pelagic; rarely seen near land except near breeding colonies which are normally situated on small islands. | Pelagic; rarely seen near land except near breeding colonies which are normally situated on small islands. | ||
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*[http://www.aviceda.org/abid/birdimages.php?action=birdspecies&fid=46&bid=616 View more images of this species on the ABID] | *[http://www.aviceda.org/abid/birdimages.php?action=birdspecies&fid=46&bid=616 View more images of this species on the ABID] | ||
*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=1077&Bird_Image_ID=3643&Bird_Family_ID=113 View more images of this species on Orientalbirdimages] | *[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=1077&Bird_Image_ID=3643&Bird_Family_ID=113 View more images of this species on Orientalbirdimages] | ||
− | [[Category:Birds]] | + | [[Category:Birds]][[Category:Sula]] |
Revision as of 18:36, 28 June 2008
- Sula sula
Previous name: Sula piscator
Identification
L. 26-29 in
- Long tail
- Short neck
- Red feet
- Black flight feathers
- Primaries and, in most populations, outer secondaries
- Bluish bill with pink base
- Bluish skin around the eye
Brown Phase
- Wings darker than head, neck and underside of body
- Pink face
- Bluish bill
- Most have white tip to tail
- Many have dark brown necklace around upper breast
Brown with White tail=
Fundamentally similar to the brown phase except that the entire tail, undertail coverts, and uppertail coverts are white.
White phase
- Entirely white, except for flight feathers
- Distinctive black bar on distal underwing coverts
- See image
- Yellow was on head and neck in some populations
Some Pacific populations have most of the tail black, while in the Caribbean and around Australia, the tail is white.
Juvenile
Birds are similar to the brown color phase, but lack the pink base to the bill. They start out with the bill all gray and feet that are dusky to orange; the bill then turn two-colored with dark tip and lighter inner part that may be fleshy. The juvenile also have the head and neck lighter than the upperside of the wing, and compared with e.g., juvenile Brown Booby has darker underwing lacking the white areas seen in the latter.
Distribution
This is a pan-tropical species with nominate subspecies breeding in the Caribbean (only white and brown with white tail) and off Brazil, with rubripes breeding in the Pacific and Indian Oceans, and websteri breeding off Mexico and Central America.
Taxonomy
Three subspecies, sula, rubripes, and websteri.
Habitat
Pelagic; rarely seen near land except near breeding colonies which are normally situated on small islands.
Behaviour
Breeding
May breed in any month with nests situated in trees and bushes, rarely on the ground.
Feeding
It is a strong flyer which rarely dive vertically but instead often flies into a wave or hit calmer water in a shallow angle. May also catch flying-fish above water.