0 a creature with feathers and wings, usually able to fly: --
1 a particular type of person: --
2 a birdie : --
The server must hit the bird so it lands within the court boundaries.
3 a creature with feathers and wings, usually able to fly: --
a flock of birds
Cuckoos are famous for laying their eggs in the nests of other birds.
The noise of the car startled the birds and the whole flock flew up into the air.
In September, these birds migrate 2,000 miles south to a warmer climate.