While flying into Cheyenne one spring day the tower anounced to pattern traffic...

Tower: Piper 1234 be aware of a flock of birds off of runway 12.

Piper 1234: Tower, we have birds in sight off our right wing.

Tower: Piper 1234 can you deternime what kind of birds they are? ...Geese?

Cessna 567: Tower we have a flock of cranes off of our left wing.

Tower: Cessna 567. Can you tell what kind of cranes?

(pause)

Piper 1234: They appear to be unlit cranes.

Unidentified: Had that one coming...