Wiktionary
n. Any substance used to kill birds.
Wikipedia
An avicide is any substance (normally, a chemical) which can be used to kill birds.
Commonly used avicides include strychnine, DRC-1339 (3-chloro-4-methylaniline hydrochloride, Starlicide) and CPTH (3-chloro-p-toluidine, the free base of Starlicide), and Avitrol (4-aminopyridine). Chloralose is also used as an avicide. In the past, highly concentrated formulations of parathion in diesel oil were also used, applied by aircraft spraying over the nesting colonies of the birds. It is impossible to minimize risk from avicides for non-targets species.
Usage examples of "avicide".
Better make it 'avicidal' -- no, 'avicide' already means the killing of birds and has nothing to do with 'avus.
Better make it ‘avicidal’—no, ‘avicide’ already means the killing of birds and has nothing to do with ‘avus.