Gannets and Boobies (Sulidae)
Masked Booby (Sula dactylatra) - HBW 1, p. 324
French: Fou masqué
German: Maskentölpel
Spanish: Piquero Enmascarado
Other common names: Blue-faced/White Booby
Taxonomy: Sula dactylatra Lesson, 1831, Ascension Island.
Hybridization with S. leucogaster has been recorded. Five subspecies recognized; a sixth, bedouti, sometimes accepted.
Subspecies and Distribution:
- dactylatra Lesson, 1831 - – Caribbean and SW Atlantic.
- melanops Heuglin, 1859 - – W Indian Ocean.
- personata Gould, 1846 - – E Indian Ocean, W & C Pacific.
- dactylatra Lesson, 1831 - – Caribbean and SW Atlantic.
- melanops Heuglin, 1859 - – W Indian Ocean.
- personata Gould, 1846 - – E Indian Ocean, W & C Pacific.
- fullagari O'Brien & Davies, 1990 - – N Tasman Sea.
- granti Rothschild, 1902 - – E Pacific.
- Least Concern Enlarge map
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A colony, resting on the rocks Locality Genovesa, Galapagos Islands (ssp granti)
Peter van Dam 6 June 2005 5 years ago 40 sec 4.3 -
An adult panting next to its downy chick Locality Genovesa, Galapagos Islands (ssp granti)
Anna Motis 19 August 2005 5 years ago 27 sec 4.3 -
An adult preening its wings and fliying away Locality Genovesa, Galapagos Islands (ssp granti)
Anna Motis 19 August 2005 5 years ago 28 sec 4.3 -
Individual soaring alongside a ship, seen from above. Locality Brazil (ssp dactylatra)
Joe Angseesing 4 March 2008 3 years ago 42 sec 4.3 -
An adult moving twigs and stones around on its very basic nest site Locality Punta Suarez, Española, Galapagos Islands (ssp granti)
Greg Baker 2 October 2004 7 weeks ago 22 sec 4 -
An adult at a nest with a very young chick Locality Genovesa, Galapagos Islands (ssp granti)
Greg Baker 27 September 2004 8 weeks ago 26 sec 4
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A bird perched with open wings.
Locality Española, Galapagos Islands (ssp granti)
Josep del Hoyo 9 August 1992 1 year ago 3.6 -
few individuals
Locality Malpelo Island, Cauca Department, Colombia (ssp granti)
David Caro 10 February 2010 1 year ago 3.5 -
Masked Booby's clock: the bird has always the back toward the sun, to protect the egg.
Locality Galapagos Islands (ssp granti)
raniero massoli-novelli 27 May 2005 1 year ago 3.5 -
a masked booby standing on top of a pile of rocks
Locality Española, Galapagos Islands (ssp granti)
marianhw 1 September 2008 4 years ago 3.3 -
An adult landed in a field of lava .
Locality Ascension Island (ssp dactylatra)
Laurent Demongin 3 October 2007 4 years ago 3.3 -
An adult and chick on a rock at Punta Suarez, Espanola
Locality Española, Galapagos Islands (ssp granti)
Ian Hempstead 28 March 2008 1 year ago 3.3
- No sound recordings available yet
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