The northern screamer (Chauna chavaria ), also known as the black-necked screamer, is a large species of bird in the small family Anhimidae, the screamers. It is a resident breeder in northern Colombia, in Chocó, Antioquia, Córdoba, Sucre, Bolívar, Magdalena, Santander, and Cesar Departments and northwestern Venezuela, in Zulia, Mérida, and Trujillo States. On average, they are 88.9 cm (35 in) long and weigh about 3.9 kg (8.6 lb). They are designated as Near Threatened due to agriculture, transportation, biological resource use, water management, and pollution from waste water and industry.
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CongregatoryCongregatory animals tend to gather in large numbers in specific areas as breeding colonies, for feeding, or for resting.
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
Waterfowl are certain wildfowl of the order Anseriformes, especially members of the family Anatidae, which includes ducks, geese, and swans. They ...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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Social animals are those animals that interact highly with other animals, usually of their own species (conspecifics), to the point of having a rec...