208 THE ROYAL SOCIETY OF CANADA 
Notes on the plumage of North American Birds. Thirty-fourth paper. 
Idem, May-June, 1915, vol. XVII, no. 3, p. 203. 
Discusses the Blue-gray, Western, Plumbeous and Blacktail Gnat- 
catchers. 
Notes on the plumage of North American Birds. Thirty-fourth paper. 
Idem, September-October, 1915, vol. XVII, no. 5, p. 378. 
Discusses the Tufted, Black-crested, Plain and Bridled Titmouse. 
Notes on the plumage of North American Birds. 
Idem, November-December, 1915, vol. XVII, no. 6, pp. 445-446. 
Discusses the White-breasted, Red-breasted, Brown-headed and 
Pygmy Nuthatches. 
CoALE, HENRY K. 
The present state of the Trumpeter Swan (Olor buccinator). 
The Auk, January, 1915, vol. XXXII, no. 1, pp. 82-90, with plates 
VII-X. 
Gives information collected from the literature and by correspondence 
showing the present distribution of this rare bird in museums and 
private collections. 
CooKE, WELLS W. 
Bird Migration. 
Bulletin 185, Bureau of Biological Survey, United States Department 
of Agriculture, April 17, 1915, pp. 1-47, with 4 plates and 20 text 
figures. 
The text figures are maps showing the distribution and migration 
routes of various birds. 
Distribution and Migration of North American Gulls and their allies. 
Bulletin 292, Bureau of the Biological Survey, United States Depart- 
ment of Agriculture, October 25, 1915, pp. 1-70, with 31 text-figures. 
The figures are maps showing the distribution and breeding areas of 
the various species. 
Our shore birds and their future. 
Yearbook, United States Department of Agriculture, Separate 642, 
1915, pp. 275-294, with 3 plates and 3 text-figures. 
The figures are maps showing the distribution of Wilson’s Snipe, the 
Woodcock and the Eskimo Curlew. 
The Migration of North American Sparrows, Thirty-second paper. 
Bird-lore, January-February, 1915, vol. XVII, no. 1, pp. 18-19, with 
one coloured plate. 
Describes the migration-routes and distribution of the following — 
species of Junco: The Pink-sided, Grey-headed, Arizona, Baird’s and 
the Guadaloupe Juncos. 
