Any of several seaducks, of the genus Bucephala, having black and white plumage.
Any of several flowering plants of the subtribe Helianthinae.
Any of several lacewings of the family Chrysopidae.
The goldeneye (certain ducks of genus Bucephala).
The mountain beaver (Aplodontia rufa).
The whistling marmot (Marmota caligata).
Someone or something that whistles, or who plays a whistle as a musical instrument.
An audio-frequency electromagnetic wave produced by atmospheric disturbances such as lightning.
A broken-winded horse.
Any of several passerine birds of the genera Pachycephala and Coracornis, of Australasia and the western Pacific.
Any bird that whistles or is noted for its whistling vocalisations (applied regionally to various specific species).