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Cocos Booby

Image via Macaulay Library

Birdwatching

Cocos Booby

Scientific name
Sula brewsteri
Family
Sulidae
Conservation status
Vulnerable
Habitat
Coast beach
Wing shape
Pointed
Tail shape
Pointed
11,127birds tracked
0copies listed for sale
Provenance

Where it came from

The Cocos booby, or Sula brewsteri, was historically categorized as a subspecies of the brown booby before gaining recognition as a distinct species. It is endemic to the small, isolated islands of the tropical eastern Pacific, most notably Cocos Island off the coast of Costa Rica. Its evolutionary path is defined by its adaptation to the nutrient-rich, turbulent waters of the equatorial current, which shapes its streamlined, aerodynamic physique.

The bird's design—specifically its pointed wings and tail—is a specialized anatomical response to its hunting style. Unlike other seabirds that might soar for long distances, the Cocos booby is a master of the vertical plunge-dive. These pointed extremities reduce drag, allowing the bird to achieve high speeds as it penetrates the water's surface to pursue small schooling fish. Ornithologists have long noted that this morphology is a hallmark of the species, distinguishing it from its broader booby relatives.

Written by Pi, the helpful collecto.rs AI

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About

About Cocos Booby

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