Air UK F27 lined up on Rwy 21 at Humberside.
Tower: UK *** Cleared for takeoff Rwy 21
UK***: Are you aware that the is a skein of geese flying down the runway centerline at low level?
Tower: (without a pause) Standby, I'll ask them to squawk!
MJ
Ps. Not an apocryphal story, I was there at the holding point. Graham Knight - one of the sharpest controllers I've ever had the privilege to work with.