You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: BIRDS 
Clue: The "snowy" type of this member of the heron family is known for its beautiful white plumes
an egret

Category: FARMVILLE 
Clue: On a farm who needs an alarm clock when you have this bird's cock-a-doodle-doo to wake you?
a rooster

Category: A WORLD OF CURRENCY 
Clue: To buy 16 ounces of cookies in Cairo, you'll need the Egyptian this

pound