A chirrup of an omen bird, īdaw, signalling a bad omen regarding a proposed endeavor.
The sharp ringing chirrup symbolizes the sound when a hard-tempered bolo is struck. This portends an accident by being cut by a bolo, speared in warfare, etc.
For an omen bird (actor -um-) to chirrup its call to someone (loc ref -an), as to one seeking an omen-bird omen, īdaw 2b.
um-: umbat