iv 
me. Not the least valuable part of the Catalogue is that which 
includes the manuscript notes furnished me by these observers 
My only aim has been to bring together all our available know- 
ledge of the distribution and the breeding habits of our Canadian 
birds and if I have succeeded in presenting this information in a 
form that will make it useful to ornithologists and bird-lovers, my 
labour has not been in vain. It will not be difficult for future 
workers to add to the matter here published or to correct the 
errors which are unavoidable in a work of this kind. 
Mr. James M. Macoun has been of great assistance to mein the 
preparation of the manuscript of the several parts for the press 
and in the revision of the proofs. The index was made by Mi-s 
Marie C. Stewart, under my direction. 
JOHN MACOUN. 
Orrawa, 7th Nov., 1904. 
ERRATA. 
E. A. Prebles should be E. A. Preble. 
Avenue, Man., should be Aweme, Man. 
On pages 266, 272 and 275, Mr. Hay should read Mr. Kay. 
The note credited to Mr. J. H. Fleming on page 408 should have 
been placed under Jeterius spurius on page 403. 
The name of the genus Cavduelis was omitted near the bottom 
of page 441 and should be inserted. 
