Black-headed heron (Ardea melanocephala), Addo Elephant National Park, South Africa, Africa

Black-headed heron (Ardea melanocephala) with its bill open, Addo Elephant National Park, South Africa, Africa

Black-headed heron (Ardea melanocephala), Serengeti National Park, Tanzania, East Africa, Africa

Blackheaded heron (Ardea melanocephala), among spring flowers, West Coast National Park, Western Cape, South Africa, Africa

Black-headed heron (Ardea melanocephala), Addo Elephant National Park, South Africa, Africa

Adult black turnstone (Arenaria melanocephala), hunting along the shoreline of Isla Rasa, Baja California, Mexico, North America

Black-headed Bunting (Emberiza melanocephala) male perched on branch, Bulgaria

Black-headed Bunting (Emberiza melanocephala) male territorial calling, Bulgaria

Black-headed Bunting (Emberiza melanocephala) standing in water, Bulgaria

Black-headed Bunting (Emberiza melanocephala) male perched on branch, Bulgaria

Black-headed heron (Ardea melanocephala) stands on stump in silhouette, Serengeti, Tanzania

Black-headed Bunting (Emberiza melanocephala) eggs in nest, Armenia

Sardinian Warbler (Sylvia melanocephala) on a wire, Camargue, France

Sardinian Warbler (Sylvia melanocephala) on a post, Camargue, France