i Register
In some senses, squawker is marked as slang. Watch for register when choosing this word.
noun
Something that squawks.
A person who complains or protests noisily.
The bosses grow weary of the scammers and squawkers and conclude that they're all a big nuisance.
An informant; a stool pigeon.
A loudspeaker used for frequencies intermediate between those of a woofer and a tweeter.
The radio used in police vehicles to keep in contact with headquarters.