6 University of Michigan 



General Remarks on the Fauna 

 As was to be expected, several southern forms rare or 

 restricted to the southern part of Michigan were observed. 

 The cardinal, yellow-breasted chat, tufted titmouse, hooded 

 and sycamore warbler were common. It may be mentioned 

 in this connection that the summer tanager and Carolina wren 

 were not seen. 



Although the migrating birds received considerable atten- 

 tion, it is thought best not to attempt a summary of "the obser- 

 vations. The results of several seasons' work must be at 

 hand before even approximate dates of the arrival and depar- 

 ture of each species can be determined. It can be said, how- 

 ever, that the dune region is particularly favorable for work 

 on migrations. 



ACKNOWEEDGMENTS 



In the course of the field work the writer became deeply 

 indebted to a number of residents for assistance and hospi- 

 tality. Much of the success of the field studies is due to the 

 cooperation of Mr. George Fox, Curator of the Chamberlain 

 Memorial Museum at Three Oaks. Mr. and Mrs. Wells Sizer, 

 of Birchwood Beach, rendered much assistance in the work 

 in that region, and in 1920 Mr. and Mrs. Raymond Reymuth 

 generously gave the use of their summer home as headquarters 

 for the work in the dune region. 



List op Species 

 The writer realizes that this list is far from complete, as it 

 is only the result of the work done in the three small areas 

 mentioned above. 



Colymbus miritus. Horned Grebe. — This species occurs only 

 as a migrant. It was first observed at Birchwood Beach Sep- 



