frantzii. after Alexander von Frantzius (1821-1877) German naturalist and collector in Brazil, 1849-1853 and Costa Rica, 1853-1868. Males and females are similar but the males have the tuft of black feathers on the nape. Photographed in Cinchona, Costa Rica. Size: 6 and 3/4 inches (17cm), 62g. Range: Costa Rica and W. Panama.