"Squealer and squawker both went into the heap that time, I guess," said Rudolf.
squawker seemed quite pleased, however, and turned himself round and round for their approval.
1821, probably of imitative origin (cf. dialectal Italian squacco "small crested heron"). The noun is attested from 1850. Squawk-box "loud-speaker" is from 1945.
: Okay, what's your squawk this morning? (1909+)
[echoic of an unpleasant sound, esp the grating screech of a bird]