James' World 2

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The blue-footed booby is a marine bird native to subtropical and tropical regions of the eastern Pacific Ocean. It is one of six species of the genus Sula – known as boobies. It is easily recognizable by its distinctive bright blue feet, which is a sexually selected trait. Males display their feet in an elaborate mating ritual by lifting them up and down while strutting before the female. The female is slightly larger than the male and can measure up to 90 cm (35 in) long with a wingspan up to 1.5 m (5 ft).

The natural breeding habitats of the blue-footed booby are the tropical and subtropical islands of the Pacific Ocean. It can be found from the Gulf of California south along the western coasts of Central and South America to Peru. About half of all breeding pairs nest on the Galápagos Islands. Its diet mainly consists of fish, which it obtains by diving and sometimes swimming underwater in search of its prey. It sometimes hunts alone, but usually hunts in groups.

The blue-footed booby usually lays one to three eggs at a time. The species practices asynchronous hatching, in contrast to many other species whereby incubation begins when the last egg is laid and all chicks hatch together. This results in a growth inequality and size disparity between siblings, leading to facultative siblicide in times of food scarcity. This makes the blue-footed booby an important model for studying parent-offspring conflict and sibling rivalry.

The blue-footed booby was described by the French naturalist Alphonse Milne-Edwards in 1882 under the current binomial name Sula nebouxii. The specific epithet was chosen to honor the surgeon, naturalist, and explorer Adolphe-Simon Neboux (1806–1844). There are two recognized subspecies: Wikipedia

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An image of Blue-footed Boobys

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Bartolomé Island is a volcanic islet in the Galápagos Islands group, just off the east coast of Santiago Island. It is one of the “younger” islands in the Galápagos archipelago. This island, and Sulivan Bay on Santiago island, are named after naturalist and lifelong friend of Charles Darwin, Sir Bartholomew James Sulivan, who was a lieutenant aboard HMS Beagle.

Small Orange Lighthouse at the Summit of Bartolomé Island

With a total land area of just 1.2 square kilometers (0.5 square miles), this island offers some of the most beautiful landscapes in the archipelago. The island consists of an extinct volcano and a variety of red, orange, green, and glistening black volcanic formations.

Bartolomé has a volcanic cone that is easy to climb and provides great views of the other islands. Bartolomé is famous for its Pinnacle Rock, which is a distinctive characteristic of this island.

It has two visitor sites. At the first one, one may swim and snorkel around Pinnacle Rock; the underwater world there is really impressive. Snorkelers are in the water with the penguins, marine turtles, white-tipped reef sharks, and other tropical fish. The bay is also an excellent place to go swimming. The twin bays are separated by a narrow isthmus.

Galápagos penguins are frequently seen, and a small cave behind Pinnacle Rock houses a breeding colony. Seasonally, Bartolomé is the mating and nesting site for the green turtles. With herons, they make use of the gentler beaches. The Galápagos lava cacti colonize the new lava fields.

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An image from Bartolome Island

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