THE OTTAWA NATURALIST 



Published by The Ottawa Field-Naturalists' Club 

 Ottawa, Ont. 



Harlan I. Smith 

 M. O. Malte 

 M. Y. Williams 



Editor : 



Arthur Gibson. 



Entomological Branch, Department of 



Agriculture, Ottawa. 



Associate Editors: 

 Anthropology. P. A. Taverner 



Botany. L. M. Lambe 



Geology. R. M. Anderson 



Secretary 



Clyde L. Patch. 

 Geological Survey. 



Ornithology. 



Palaeontology. 



Zoology. 



Treasurer 



J. R. Dymond. 



Department of Agriculture. 



CONTENTS 



Page 



Foreword 1 



Wild Plants as Food. By F. W. Waugh 2 



The Song of the Porcupine. By P. A. Taverner 6 



Mammal Food of the Great Horned Owl. By C. E. Johnson 6 



A Crow Polygamist? By C. L. Patch 6 



Unusual Food of the Garter Snake. By J. M. Macoun 6 



Cerussite from Salmo, B.C. By A. Ledoux and T. L. Walker 7 



Notes 8 



The Behaviour of the Red Squirrel. By A. B. Klugh 9 



Brief Report of the Ottawa Field Naturalists' Club for year ending March 19, 1918 12 



Collecting Notes for Northern Spiders. By J. H. Emerton 13 



The Relationship of the Fossil Marl Fauna of MacKay Lake, Ottawa, to the Present 



Molluscan Fauna of the Lake. By E. J. Whittaker 14 



Most Unusual Deer Head With Eye Teeth. By C. Garrett 18 



The Evening Grosbeak. By A. L. Gormley 19 



A Protected Nest of the Bald Eagle. By W. E. Saunders --^ 20 



THE OTTAWA NATURALIST, established thirty-one years ago, "to publish the 

 results of original research or investigation in all departments of natural history," is issued monthly 

 from September to May, inclusive. All receipts from the publication are invested in the magazine 

 itself. Papers, notes and photographs for publication should be addressed to the Editor. The 

 subscription price is One Dollar a Year. Subscription should be addressed to the Treasurer, 

 Mr. J. R. Dymond, Seed Branch, Department of Agriculture, Ottawa. 



