Aegotheles cristatus -- Australian Owlet-Nightjar. Alternate name on piece: Dacelo cervina [White-bellied owlet nightjar] 3 head studies: a. uncolored litho print (from the canceled Birds of Australia 2: 2); b. pencil; c. colored litho (apparently from neither a. nor Birds of Australia 2: 20; all cut out and mounted on a single sheet.