RINGED PLOVER 229 



1907, Loveland, May 6, 1890, and Grand Lake, Middle Park (Carter 

 Collection) ; and Arizona, Fort Verde, September 8, 1884, Colorado 

 Kiver, September and October, 1865 (Coues), and Tucson, April, 

 1883 (Scott). 



Egg dates. — Labrador and Ungava : 42 records, June 7 to July 7 ; 

 21 records, June 18 to July 1. Quebec to Nova Scotia: 33 records, 

 June 6 to 29 ; 17 records, June 15 to 23. Arctic coast of Canada : 18 

 records, June 16 to July 20; 9 records, June 23 to July 4. Alaska 

 and British Columbia; 19 records. May 27 to July 6; 10 records, 

 June 1 to 9. 



CHARADRIUS HIATICULA Linnaeus 

 RINGED PLOVER 



Contril)tited hy Francis Charles Robert Jourdain 

 HABITS 



The ringed plover breeds both on the east and west coasts of 

 Greenland, ranging north to Sabine and Clavering Islands and 

 Denmark Harbor on the east side and to Inglefield Gulf on the west. 

 It is also said to breed near Cumberland Sound in Baffin Land, but 

 this may refer to the semipalmated plover, Gharadnus semipahnatu^^ 

 and it has occurred casually in Barbados, Chile, and southern Alaska. 



The subdivision of the ringed plover into geographical races is 

 attended with considerable difficulties owing to the presence of pass- 

 ing migrants on many of its breeding grounds. The Siberian form, 

 Charadrius hiaticula tundrae is generally recognized, but is only dis- 

 tinguishable with certainty in summer plumage. Probably the 

 Alaskan specimen belongs to this race. E. Lehn Schioler, with fine 

 series of carefully sexed birds before him, separates the Greenland 

 breeding birds from the typical race under the name of Ch. hiaticula 

 septentrionalis, but material with accurate data is too scarce in 

 other collections to enable us to hazard an opinion. 



Spring. — In northeast Greenland, where Manniche found this 

 species breeding plentifully, the birds arrived about the end of May 

 or the beginning of June, at the same time as the other waders. 

 Icelandic birds arrive earlj'^: April 22 to 28 (Faber). 



Dr. W. Elmer Ekblaw says in his notes: 



The ringed plover is oue of the most noticeable birds of the shorelands of 

 northwest Greenland. Few beaches are unoccupied by these noisy little birds, 

 and rarely is one out of sound of their shrill piping. They are quite as common 

 about the streams and pools of the interior and along the seepage swales of 

 the ground moraines. They come to the land as early as May 29 and stay 

 until the last week in July. Almost invariably they are mated when they 

 arrive and only rarely does one see more than a pair together, except where 



