1) Bozo 1) Flycatcher 2) Old world flycatcher 3) True flycatcher 4) Whistler 
• (n.) A thick-headed or stupid person. • (n.) Any one of several species of Australian singing birds of the genus Pachycephala. The males of some of the species are bright-colored. Some of the species are popularly called thrushes.
any of about 35 species constituting the songbird family Pachycephalidae (order Passeriformes), considered by some authors to be a subfamily of ...
Thick'head` noun 1. A thick-headed or stupid person. [ Colloq.] 2. (Zoology) Any one of several species of Australian singing birds of the genus Pachycephala . The males of some of the species are bright-colored. Some of the species are popularly called thrushes . 
[n] - Australian and southeastern Asian birds with a melodious whistling call
noun Australian and southeastern Asian birds with a melodious whistling call