The common European black crow Corvus corone.
The American black vulture Coragyps atratus.
The harsh call of various birds, such as the raven or corncrake, or other creatures.
The call of a frog or toad. (see also ribbit)
A faint, harsh sound made in the throat.
To kill someone or something.
To complain; especially, to grumble; to forebode evil; to utter complaints or forebodings habitually.
To die.
To utter in a low, hoarse voice.
To make a croak.
To make its sound.