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Cocos Island Finch: Pinaroloxias inornata
Body: It is 12 centimeters long and weighs 12-16 grams. They have a black, decurved beak, and the males have an all black body with a paler underside while the females are streaked brown with a paler underside. Their young have yellow bills, and their eggs are brown speckled and white in a spherical branch on the end of a tree branch.
Behavior: It feeds on insects, crustaceans, nectar, fruit, seeds, small mollusks, and even some small lizards. Given their adaptability to different foods, these finches have a wide variety of foraging behaviours. Cocos Island Finches nest throughout the year, but mostly from January-May. Usually, they have two eggs which are incubated for 12 days.
Population: The Cocos Island Finch is Vulnerable, due to their small habitat on Cocos Island. Although it is stable and doesn't have any pressing threats on their population, their vulnerability to catastrophies justifies its threatened status. It is the only of Darwin's finches not to live in the Galapagos. It takes advantage of all of its limited habitat, living in Hibiscus thicket on the coast, woodlands, open country, and closed-canopy forests.
Other: Cocos Island is home to three of the six alive endemic species to Costa Rica.