The warbling vireo's song is a cheerful warble, similar to that of the painted bunting. The bird's song is inconspicuous, containing whistling, warbling and trilling notes. Despite her warbling voice, Freddy drunkenly gushes over her performance. This effect gives the bazooka its characteristic warbling, echoing sound. Albarn's rapping as a "fail[ure]", and Murphy's chorus as "weird and warbling". The male's song consists of short pleasant warbling strophes, interspersed with fluid whistles. Kits make warbling whimpers when nursing, these calls being especially loud when they are dissatisfied. Its complex, musical, warbling call is one of the most familiar Australian bird sounds. The robin produces a fluting, warbling during the breeding season. Warbling vireos forage for insects in trees, hopping along branches and sometimes hovering. The song is a series of warbling "" and scolding notes. The former has a fairly uniform, long, and warbling song. It provides a signal representation based on cyclically varying frequency modulated signals (warbling signals). "Tweedle" warbling calls may reinforce a breeding pair bond. There are no documented predators of the warbling white-eye.