Oriole.
Bluejay
Quetzl (or quetzal)
grebes
Stork, Starling
One state that contains the letters "co" but does not begin with them is Oklahoma. The letters "co" appear in the middle of the state's name, while the name itself starts with the letter "O." Other examples include North Carolina and Wisconsin.
Roadrunner, robin, rockhopper penguin, rooster, royal albatross and royal penguin are birds. They begin with the letters ro.
Some words that begin with the letters CO:coachcoagulatecoalcoalitioncoastcoatcobcobracocainecocktailcocoacocktailcodcodecodfishcoedcoercecoexistcoffeecoffincogcognaccoheircoilcoincoldcolorcontracookcookiecoolcopscopycoralcorncostcoughcountrycouplecovecovercowcowardcozy
cardinal and cockatoo
albatrossCarrion Crow, Cardinal, Canada Goose...
Crane.. and canary, crocidile, cattle, chicken.
Cardinal, Canary, Crane, Coo-Coo bird, and California Condor.