Different seagulls make different sounds. Some purr, some grunt, squawk, laugh, croon, cry, squeal, hoot, or coo.
loud and very noisey that they sound like they are screaming.
a farting sound
McMurdo Sound
a caw
movement
ppo
cliff
The sound that a crane makes is called a "bugling" or "trumpeting" call. It is a loud and distinctive call that is used for communication between individuals in a flock.
If you mean what sound does an alpaca make when they call, they hum.
The sound a swallow makes is called a chirp or a twitter. Swallows are known for their distinctive calls and vocalizations.
Drone.
A very quiet hum.