116 The Wilsox Bulletin — No. 88 



2. Roberts, Dr. Thos. S. The Prothouotary or Golden 

 Swamp Warbler (Protonotaria citrea) a Common Summer 

 Resident of Southeastern Minnesota. Auk, XVI. 1899. pp. 

 236-246. 



3. Adams, C. C. The Migration Route of Kirtland's War- 

 bler. Bull. Mich. Ornith. Club, V, 1904, pp. 14-21. 



4. Anderson, R. M. The Birds of Iowa. Davenport. Iowa, 

 1907. 



Sioux City, Iowa. 



HABITS OF THE OLD-SQUAW {HARELDA HYEMA- 



LIS) IN JACKSON PARK, CHICAGO. 



By ED^YIN D. Hull. 



INTRODUCTION. 



The following notes are the result of three winters" study 

 of the habits of the Old-squaw in Jackson Park, Chicago, 111., 

 from 1912 to 1914 inclusive. It is regretted that observa- 

 tions could not have been made for a few years more, and 

 it is conceivable that exceptions to some of the statements 

 contained herein might be made through additional study, 

 but it seems advisable to publish what observations there are, 

 as the stock of information concerning our waterfowl is gen- 

 erally conceded to be woefully deficient. 



PREVIOUS LITERATURE. 



I have been able to find l»ut two extensive papers on tiie 

 habits of this bird, both of which have been noted carefully. 

 In 1892 G. H. Mackay (Auk 9: 330-337. 1892) gave an 

 excellent account in a general way of the species in New 

 England, where the birds were observed almost exclusively 

 on salt-water. In 1913 a more intensive study was recorded 

 by J. G. Millais (British Diving Ducks, Vol. 1, 112-131. 1913) . 

 The notes here, however, relate mainly to the habits of the 

 species in the Old World, and likewise on salt-water. No 



