Cos Cob, Conn. 
June 9, 1906. 
William Brewster, Bsq., 
Concord, Mass. 
My dear Brewster:- 
I am very much obliged to you for yours of May 
25th. I am entirely of your opinion concerning the Mammals 
of Manitoba. I.am glad to have your support — hitherto I 
have stood alone. 
By the way, four days ago, while listening to the 
Whippoorwill, it struck me that it is the only bird song in our 
country which answers the strict definition of Music. It differs 
from all other bird songs in this that throughout it has a 
perfectly marked rhythm . 
This year we have a wonderful lot of vireos. I1 think 
the rea-eyeu wies has favored me many times with 1s song 
much like that of an English sparrow and several times I have 
seen two males chasing each other through the woods uttering 
meanwhile a prolonged voluble nusieal song. I shall have a 
queer story to tell you of the doings of some of my geese. 
Yours ‘sincerely, 
: te poke aa 
id 0 Melon 
ey 
C7 
