gaggle (n.)
- bevy
- cackle
- call
- carol
- caw
- charm
- chatter
- cheep
- chirp
- chirrup
- chuck
- clack
- cloud
- cluck
- cock-a-doodle-doo
- coo
- covey
- croak
- crow
- cuckoo
- drum
- flight
- flock
- gabble
- gobble
- hive
- honk
- hoo
- hoot
- murmuration
- peep
- pip
- pipe
- plague
- quack
- roll
- scold
- sing
- skein
- spring
- squawk
- swarm
- trill
- tweet
- twit
- warble
- watch
- whistle