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The Galapagos Islands are habitat for numerous seabirds, which nest in large numbers on some islands and islets.
The Galápagos mockingbirds is an insectivorous bird, about 25 cm in size, with brown back, white belly, long tail, and straight, long and thin beak.
The bifurcated tail gull ( Creagrus furcatus) is completely nocturnal and thus avoids the attacks of the frigates, which fly during the day.
One of the most characteristic Galápagos seabird is the frigatebird, an elegant black bird with a wingspan of more than a meter, capable of performing the most incredible aerial maneuvers.
The Galapagos penguin (Spheniscus mendiculus) is the only penguin that lives in Ecuador. Although the species is endemic to the islands, the Galapagos penguins are morphologically similar to the Humboldt penguins, which breed in the coasts of Chile and Peru, and to the Magellanic penguins, typical of the southern tip of South America.
Fossil feather from the Crato Formation, Cretaceous, Brazil. It is possible that this feather belonged to an individual of the bird species Cratoavis cearensis. Specimen on display at the Paleontological Museum of Santana do Cariri