blackchested snake-eagle (circaetus pectoralis) kgalagadi transfrontier park, south africa

africa bird desert wildlife southern behavior habitat tourism raptor large eagle brown legs feathered feet eyes yellow young feeds snakes lizards small mammals frogs open grassland savanna bushveld widespread kalahari arid semidesert common resident kgalagadi transfrontier park south blackchested snake-eagle circaetus pectoralis snake lift wings spreaded