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Masked Booby (Sula dactylatra) catching lunch

The masked booby (Sula dactylatra), also called the masked gannet or the blue-faced booby, is a large seabird of the booby and gannet family, Sulidae.

 

The largest species of booby, the masked booby ranges from 75 to 85 cm (30 to 33 in) long, with a 160–170 cm (63–67 in) wingspan and 1.2–2.2 kg (2.6–4.9 lb) weight. It has a typical sulid body shape, with a long pointed bill, long neck, aerodynamic body, long slender wings and pointed tail. The adult is bright white with dark wings and a dark tail.

 

The sexes have similar plumage with no seasonal variation, but females are on average slightly heavier and larger than males.[31] The bare skin around the face, throat and lores is described either as black or blue-black. It contrasts with the white plumage and gives a mask-like appearance.

 

The bill of the nominate subspecies is pale yellow with a greenish tinge, sometimes greyish at the base. Conical in shape, the bill is longer than the head and tapers to a slightly downcurved tip. Backward-pointing serrations line the mandibles. The primaries, secondaries, humerals and rectrices are brown-black. The inner webs of the secondaries are white at the base. The underwing is white except for the brown-black flight-feathers that are not covered by the white coverts. The legs are yellow-orange or olive. The iris is yellow.

 

This image was taken in the Caribbean Sea inbetween Barbados and Curacao.

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Uploaded on April 20, 2025
Taken on January 14, 2025