594 



Swann, H. Kirke, and Alexander Wetmore. 1930. Ibid. Vol. I, Pt. 2. 



Ibid., 277 — 487 -)- XV — Ixviii (index). 

 — ■ , 1945. Ibid. Vol. II. Ibid., xx -|- 538, plates in color and photo- 



gra\aire. 

 Wardlaw Ramsay, R. G. 1923. Guide to the birds of Europe and North 



Africa. Gurney and Jackson, London, xi -f- 355. 

 Witherby, H. F., F. C. R. Jourdain, Norman F. Ticehurst, and Bernard 



W.Tucker. 1938. The handbook of British birds. Vol. I. Witherby, 



London, xl -}- 326, 33 plates, text figs., maps. 

 — . 1938. Ibid. Vol. II. Witherby, London, xiii -}- 352, 30 plates, 



text figs., maps. 



