[12] Wild Sports and Natural History of the Highlands, by Charles St. John, ch. x. p. 131.
[13] See also the letter of Mr. H. G. Hurrell in the Field for March 8, 1923.
[14] This is a very considerable warning—H. F.
[15] Pp. 258-259 (Witherby & Co., London, 1914).
[16] Pp. 35, 36.
[17] Manual of British Birds, by Howard Saunders, 2nd ed. (Gurney & Jackson, London), pp. 264, 266.
[18] History of the Birds of Europe, by Henry E. Dresser, F.L.S., F.Z.S. (1871-1881), vol. iv. p. 617.
[19] A Practical Handbook of British Birds, edited by H. F. Witherby, vol. ii. pp. 7, 9. Witherby & Co., London, 1920.
[20] Handbook to the Birds of Australia, by John Gould, F.R.S. (1865), vol. i. p. 104. London.
[21] Vol. ii. p. 305, Porter, 6 Tenterden Street, W.; Dulau & Co., Soho Square, W., 1884.