ululating (part of speech: verb)
crying, chattering, cackling, squawking, cawing, honking, bleating, grunting, neighing, quacking, mooing, squealing, gobbling, yelping, growling, hooting, bellowing, baying, clucking, snarling, snorting, cooing, purring, whinnying, howling, cuckooing, trilling, twitting, ululating, calling, meowing, warbling, roaring, mewing, bawling, braying, crowing, barking
- She welcomed it gratefully, aware that it was in no wise due to her own effort, and spreading a hymn- book open for the first song, stooped to allow the small boy next her to look on, then lent her voice as freely as she could to the chirping chorus. - "The Wide Awake Girls in Winsted", Katharine Ellis Barrett.
- The continued chirping of a cricket, and the bellowing of distant bull- frogs, finally lulled me to sleep. - "The Voodoo Gold Trail", Walter Walden.
- And ere long leaves slowly dripping and birds chirping were the only sounds. - "The Heart of Arethusa", Francis Barton Fox.