vi PREFACE. 
of the waders and swimmers which frequent that region. The seasons 
of 1907 and 1908 were spent by him on Vancouver Island. 
The chief sources from which published observations and notes 
have been compiled are indicated in a brief and far from complete 
bibliography. As regards Greenland and Alaska no attempt has 
been made to utilize all that has been published. It has been 
thought sufficient to refer to the most important lists and to include 
all the species known to occur in these regions. It cannot be hoped 
that no important omissions have been made in the distribution of 
Canadian birds, but as the authors expect to publish annually an 
addendum to this catalogue the necessary corrections will be made 
from time to time and the co-operation of collectors and observers 
is solicited for this work. 
In addition to the list of authorities cited, manuscript lists and 
notes on nesting habits have been furnished the writers by Mr. J. H. 
Fleming, Toronto, Ont.; Mr. W. E. Saunders, London, Ont.; Mr. 
Geo. White, Ottawa, Ont.; Mr. E. T. Seton, Cos Cob, Conn.; Mr.-A. 
C. Bent, Mr. Walter Raine, Toronto, Ont.; Mr. J. Dippie, Calgary, 
Alta. ; Mr. Robt. Elliott, Plover Mills, Ont.; Mr. P. A. Taverner, 
Bracebridge, Ont.; Mr. C. R. Harte, Nova Scotia; Mr. Harold Tufts, 
Wolfville, N.S.; Rev. C. J. Young, Madoc, Ont.; Rev G. Eifrig, 
Ottawa, Ont.; Mr. J. Hughes-Samuel, Toronto, Ont.; Mr. W. H. 
Moore, Scotch Lake, N.B.; Mr. Alfred L. Garneau, Ottawa, Ont. ; 
Mr. A. B. Klugh, Guelph, Ont.; Mr. A. F. Young, Penetanguishene, 
Ont.; Mr. Norman Criddle, Aweme, Man.; Mr. Geo. A. Atkinson, 
Portage la Prairie, Man.; Mr. E. F. G. White formerly residing in 
British Columbia, but now at Ottawa; many members of the Geolo- 
gical Survey staff and others who have contributed notes or short lists. 
The whole series of the Tyvansactions of the Natural History Society of 
Nova Scotia; the Bulletin of the Natural History Society of New Bruns- 
wick; the Canadian Naturalist and Record of Science, Montreal; the 
Ottawa Naturalist; the Journal of the Canadian Institute, Toronto; the 
Auk, published in New York and the Wilson Bulletin have been drawn 
on for notices of rare species and local lists by various contributors. 
The greater part of the compilation of the new material for this 
edition of the Catalogue has been done by my assistant Mr. J. M. 
Macoun. The very complete index was made by Miss Marie C. 
Stewart. 
JOHN MACOUN. 
OTTAWA, 15 October, 1909. 
