If you've got it, flaunt it

Bigger really is better... at least for the frigate birds. Their inflatable gular sac is as big as the rest of their body and is used to attract females during mating season. If female frigates could talk you could hear them saying, "Dear God, look at the size of that thing! It's so big and red." Such is the life of the frigate bird. To be a celebrity you have to get used to being stared at.