174 APPENDIX 



Slave Lake about the first week in June, whereas the first 

 arrival at Fort Simpson, Mackenzie, was April 28, 1904; 

 and a female was shot at Fort Resolution May 24, 1860, 

 which contained a fully formed egg. It is evident, then, 

 that the earliest arrivals in the Mackenzie Valley come 

 from the southwest, where, in southern British Columbia, 

 the species winters a thousand miles farther north than 

 on the plains. The baldpate arrives at the mouth of the 

 Yukon in early May, and on the Knik River, Alaska, the 

 first bird was noted May 10, 1901. Most of the few spring 

 records in New England are in April, two in February, 

 but the species is apparently less common in the spring 

 than in the fall. The last migrants usually leave Cuba 

 late in April, though in Guatemala they have been seen 

 as late as May. 



Fall Migration. — The month of September, especially 

 the latter half, sees the arrival of the first baldpates over 

 most of the district between the breeding grounds and 

 Cuba and Louisiana ; but these are only the advance 

 scouts ; the main body appears in the northern United 

 States early in October and reaches the middle Atlantic 

 States about the middle of that month. Dates of arrival 

 are: Middletown, R. I., Sept. 20, 1889; East Hartford, 

 Conn., Sept. 29, 1888; Beaver, Pa., Aug. 30, 1890. Strag- 

 glers have been seen in Massachusetts and in northern 

 Pennsylvania as late as the first week in December, but 

 most leave at least a month earlier. The average date at 

 which the last were seen at Ottawa, Ont, is Oct. 27, latest 

 Nov. 6, 1890; at Keokuk, la., Nov. 13, latest Nov. 18, 1892. 

 The last was seen at Montreal Sept. 20, 1897; Edmonton, 

 Alberta, Nov. 6, 1896; Kowak River, Alaska, Sept. 20, 

 1898; St. Michael, Alaska, Oct. 1. 



