Cock-a-doodle-doo

For those of you who didn't know.. Bill is from Philadelphia- therefore, he is a huuuge eagles fan. Evan's new favorite word is "cock-a-doodle-doo" and every time we go outside he points to this tin rooster thing on the neighbors porch and says "cock-a-doodle-doo" over and over. How does this have to deal with the fact that Bill's from Philly?? well.. Evan thinks it's funny to point to eagles stuff and say "cock-a-doodle-doo" as Bill repeatedly trys to explain to him that its an eagle not a rooster! I told Bill that he has to tell Evan what a eagle says and his response? " I don't know what an eagle says!" It's quite hilarious!