Taverner and Swales — On Point Pelee Birds. 131 



end of the Point. Next day they were gone, having presumably 

 continued their way. The east beach was not thoroughly work- 

 ed and not many waders were seen. With the exception of the 

 Spotted Sandpiper all seen under conditions by which age 

 could be judged were adults. The Sanderling taken proving 

 to be an old bird whereas heretofore on seasonally later dates, 

 all were juvenile. The most conspicuous feature, however, was 

 the number of Carolin Wrens singing. Up to this date we have 

 found them in but one limited locality, but the'se days they were 

 all over the end of the Point. On the whole, this visit was con- 

 siderable of a surprise. Though nothing very startling was ob- 

 served, the data obtained on the early beginnings of the fall 

 migration were of considerable interest. 



These last three trips added considerably to our knowledge of 

 Point Pelee, especially in its migrational aspects and has veri- 

 fied many of our previous ideas, and suggested others before 

 not thought of. One fact they have accentuated in a marked de- 

 gree, — the "wave" like form of many of the migrations. In- 

 deed we-almost feel tempted to generalize by saying that nearly 

 all species can at one time or ano'lher of the seasom be found 

 here in such numbers as to constitute a "wave". In such man- 

 ner we have so far noted the following species that are not usu- 

 ally regarded as gregarious ; nor would we care to so designate 

 them even after our experience with them here. Every indica- 

 tion goes to show that they are not drawn together as social 

 collections, but rather by a community of interest, and their 

 gatherings are rather the result of each individual, moved by 

 common coiuditions, making for the same crossing place of the 

 lake and arriving simultaneously. Detail of such occurrences 

 can be obtained under their proper specific heads in the lis". 



Sharp-shinned Hawk.— Sept. 1883; Sept., 10-17, 1905; Sept. 

 15- 33, 190G. 



Northern Flicker.— Sept. 14-18, 1905; Sept. 15-33, 1906; 

 Aug. 3G-Sept. 6, 1907. 



Whipoorwill.— Sept. 13, 1905 ; May 1-3, 1908. 



Ruby-throated Hummingbird. — Sept. 1-3,1906. 



Kingbird.— Aug. 31-39, 1907 ; Aug. 15-16, 1908. 



