Unicoloured Blackbird
 The Unicoloured Blackbird (Agelasticus cyanopus) is a species of bird in the Icteridae family.It is found in Argentina Bolivia Brazil and Paraguay. Its natural habitat is swamps.The male Unicoloured Blackbird is befitting of its name with entirely black plumage and dark eyes. However the species exhibits sexual dimorphism; the female is brown with a yellow belly a darker mask and rusty colored wings.