- Bullfinch, Charles Bullfinch - United States architect who designed the Capitol Building in Washington which served as a model for state capitols throughout the United States (1763-1844)
--1 is a kind of architect, designer
- bullfinch, Pyrrhula pyrrhula - common European finch mostly black and white with red throat and breast
--2 is a kind of finch
--2 is a member of Pyrrhula, genus Pyrrhula