All pilots, use caution for flocks of birds on and in the vicinity of the airport...

Tower: Skyhawk XXXXX, be advised there are 10,000 seagulls near the approach of runway 15.

Skyhawk: Roger. Is that an official count?

Tower: Just a quick count.

(pause)
Tower: Skyhawk XXXXX, be advised there are 10,435 seagulls near the approach of runway 15 ... and you're cleared for the option.