An imitation of this cry.
Any vocalisation of a bird.
A device used to imitate this cry, so as to lure and catch birds.
To imitate the cry of a bird.
A low, mournful sound uttered in pain or grief.
A low, guttural sound uttered in frustration, disapproval, or ecstasy.
A low creaking sound from applied pressure or weight.
To seemingly creak under the strain of being heavily laden.
To make a groan.