gallinaceous
adjective
gal·li·na·ceous ˌga-lə-ˈnā-shəs 
: of or relating to an order (Galliformes) of heavy-bodied largely terrestrial birds including the pheasants, turkeys, grouse, and the common domestic chicken
Word History
Etymology
borrowed from Latin gallīnāceus "of domestic fowl," from gallīna "hen" (from gallus "cock" —perhaps going back to an onomatopoeic base *gal-, seen also in Celtic, Germanic, and Slavic— + īna, feminine noun suffix) + -āceous -aceous — more at call entry 1
First Known Use
1693, in the meaning defined above