The Birds of Cameroon: The Dynamism of the Cameroonian Avifauna Revealed by Several Bird Surveys in the Centre Region of Cameroon in the Heart of the Congo Basin Forest, Case of Migratory Birds

In this review of several new birds identified in the Centre region of Cameroon, one of the six countries that make up the Congo Basin Forest, we focus on migratory birds. Bird migration appears to be one of the most fascinating biological phenomena relying on various major determinants which may explain that the migration is not always a round trip. Based on these major determinants that structure the bird migration, it results that mainly four possible hypotheses may be retained which could explain the discovery of these new migratory birds in this region: an energy failure, the insufficient learning of migratory routes, the beginning of adaptation of certain male individuals to their wintering range and the adaptation of some migratory birds to high temperatures.