0 to sing in a trembling voice, as some birds do -- hót líu lo
1 an act, or the sound, of warbling -- tiếng hót líu lo
I could hear the distinctive warble of a nightingale.
As regards the warble fly, the agriculture departments have maintained regular annual publicity enjoining farmers to treat their cattle.
The brown-capped vireo has a sharp "twiist" call and the song is a rich warbled "here you see me hear me sing so sweet", reminiscent of that of warbling vireo.
She warbles as she flies.
The song is slow and warbling, with repetition of phrases.
The call is a sharp "pit", and the song is a mixture of slurred whistles, warbles and trills.
The male bird sings a series of warbled notes to defend his nesting territory.
The song is a mixture of warbling phrases and guttural, croaking notes.
Once a male has found a mate, he selects a territory, marking the boundaries by warbling as he flies from perch to perch.
