The Vasa Parrots are somewhat odd-looking parrots, native to Madagascar and surrounding islands. Flocks consist of a female with 3-8 mates, all of which assist her in raising the chicks. The male is able to invert his cloaca, turning it into a hemipenis and creating a copulatory tie. This assists in fertilisation, assuring the male greater chance of fathering offspring. This feature is generally found in lizards, not birds. During the nesting period, the female sheds her head feathers and will sing to her males, encouraging them to regurgitate food.
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