AVICIDE

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), CPTH (3-chloro-p-toluidine), and Avitrol (4-aminopyridine). Chloralose is also used as an avicide.