Task: Text Categorization
Input (English): Context: The Vieillot's Black Weaver (Ploceus nigerrimus) is a species of bird in the Ploceidae family.It is found in Angola Benin Burundi Cameroon Central African Republic Republic of the Congo Democratic Republic of the Congo Ivory Coast Equatorial Guinea Gabon Gambia Ghana Guinea Guinea-Bissau Kenya Liberia Nigeria Rwanda Sierra Leone Sudan Tanzania Togo and Uganda.Its natural habitat is subtropical or tropical dry forests.This bird is named after the French ornithologist Louis Jean Pierre Vieillot.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Plant, 3)OfficeHolder, 4)Animal
Output (English): 4