v. [Imitative, or a. G. quarken.] To croak. Hence Quarking vbl. sb.
1860. J. F. Campbell, Pop. T. W. Highl., II. 145. The gurgling and quarking of spring frogs in a pond.
1893. [D. Jordan], Forest Tithes, etc. 186. Rooks … cawing and quarking. Ibid., 190. The herons quarked harshly.
