THE OTTAWA FIELD -NATURALISTS' CLUB 



President: R. M. Anderson. 

 1st Vice-President: Hoyes Lloyd. 2mi Vice-President: G. A. Millar. 



Treasurer: 

 Secretary: C. B. Hutchings. 



Clyde L. Patch (Entomological Branch 



(Geological Survey) Dept. Agriculture). 



Additional Members of Council: W. T. Macoun; Miss M. E. Cowan; C. M. Stern- 

 berg; H. I. Smith; F. W. Waugh; P. A. Taverner; E. Sapir; E. M. Kindle; 

 W. J. Wintemberg; R. E. Delury; Arthur Gibson; Norman Griddle; M. 0. 

 Malte; C. H. Snell; Melville Dale; L. McI. Terrill; John Davidson; 

 R. Owen Merriman; H. M. Speechly; Harrison F. Lewis. 



Editor: 



Harrison F. Lewis. 



Dominion Parks Branch 



Dept. of the Interior, Ottawa. 



Associate Editors: 



E. Sapir Anthropology A. G. Huntsman Marine Biology 



M. 0. Malte Botany P. A. Taverner Ornithology 



F. R. Latchford Conchology E. M. Kindle Palaeontology 



M. Y. Williams Geology R. M. Anderson Zoology 



Arthur Gibson .Entomology 



CONTENTS PAGE 



Manitoba Grasshoppers. By N. Criddle 41 



The Summer Birds of Advocate, Cumberland County, Nova Scotia. By C. W. Townsend 44 



The Relation of Wild Life to Agriculture. By N. Criddle 47 



Observations on the Birds of Baffin Island and Vicinity. By Hoyes Lloyd 49 



Prosecutions Migratory Birds Convention Act and Northwest Game Act 50 



Resolution on the Introduction of Non-Native Plants and Animals 51 



Editorial Preserve the National Parks 51 



Reviews: 



The Condor for 1921. By P. A. Taverner 52 



Territory in Bird Life. By P. A. Taverner 55 



Geological Survey of Canada, Museum Bulletin No. 33. By E. M. K 56 



Notes and Observations: 



A Barking Frog. By A. B. Klugh 57 



White Gyrfalcon in Alberta. By Elsie Cassels 58 



Remarks on the Poison Ivy. By H. F. Lewis ._ 58 



Founding of a New Club. By L. L. Snyder 58 



An Interesting Family of Eiders. By H. A. P. Smith -. . . . 58 



A Correction. By T. Dewey Soper 59 



An Aquatic Habit of the Great Blue Heron. By P. A. Taverner 59 



A Large Flock of Evening Grosbeaks at Toronto. By L. L. Snyder 60 



Aquatic Habits of Pigeons. By Robt. T. Morris, M.D 60 



Bronzed Crackles as Scavengers. By C. E. Johnson 60 



Field Notes from Kapuskasing, Ont. By C. E. Johnson ; 60 



Food of Ambush Bugs. By C. E. Johnson 60 



Bumble-bees on Bleeding Heart. By C. E. Johnson 60 



THE CANADIAN FIELD-NATURALIST, lately The Ottawa Naturalist, 

 established thirty-five years ago, "to publish the results of original research or investi- 

 gation in all departments of natural history," is issued monthly, excepting for the 

 months of June, July and August. 



Papers, notes and photographs should be addressed to the Editor. Manuscript 

 should be typewritten. 



Subscriptions cover the current year, except those taken out during last quarter, 

 when they will be applied on the following year, the remaining numbers of current year 

 being sent free. Payments should be made to the Treasurer, Mr. C. B. Hutchings 

 Entomological Branch, Dept. of Agriculture, Ottawa. Price of this volume, $L50; 

 single copies 20c each. 



