I 
NINTH REPORT. 
Of the Colorado Biological Associa- 
tion. 
EDITED BY THE SECRETARY. 
THE LIBRARY. 
It is our pleasant duty to acknowledge 
several valuable contributions to the li- 
brary, namely the magnificent “Mono- 
graph of the Geometrid moths,” by Prof. 
A. S. Packard, from the author; “A ge- 
neric Synopsis of the Fulgoridae,” by 
Wm. H. Ashmead, from the author; and 
from Mr. Wm. Otto Emerson two papers 
entitled “Birds and Eggs from the Faral- 
lon Is.,” by W. E. Bryant, and “Orni- 
thological observations in San Diego 
county, California, by W. O. Emerson. 
NEW MEMBERS. 
(35.) Frank B. Webster, Editor of 
“Ornithologist and Oologist,” 409 Wash- 
ington street, Boston, Massachusetts. 
(36.) T. M. Trippe, C. E., Silverton, 
Colorado. 
(37.) D. W. Park, 620 27th street, Den- 
ver, Colorado. 
(38.) Geo. Roberts, Lofthouse, near 
Wakefield, England. 
(39.) A. E. Lomax, 56 Vauxhall Road, 
Liverpool, England. 
observed them? and then will follow 
the whole train of immigrant birds, the 
last to arrive being in all probability the 
night-hawk. 
Will members of the Association and 
others kindly keep a look* out for these 
spring arrivals, and let us know the dates 
of earliest appearance? We want to 
know all about the migration of birds in 
Colorado, and can only do so with your 
help. 
From our diary of last year we take 
some notes; these all refer to western 
Custer county. The dates of arrival may 
be interesting to compare with this year. 
Jan. 26th, 1888: — By Swift creek, this 
morning, we hear many voices, saying 
“Che-e-e, Che-e-e.” It is a flock of about 
a hundred wax-wings, they sit on the 
tops of the quaking-asps, and never cease 
their cry; they are pretty birds, with 
their crested heads, and varied colors, 
black, grey, brown and reddish. 
Feb. 1st. — Here are the bluebirds, a 
flock of them, the first seen this year. 
Feb. 3d. — A little brown bird cries 
“Cheet, Cheet” in a brush by the stream, 
we cannot tell what it is. Robins are re- 
ported to have been seen. 
Feb. 26th. — Saw a Robin, the first we 
have seen this year. 
March 11th. — Robins are now quite 
common. 
OUR SPRING MIGRANTS. 
On the 31st of January, we saw a flock 
of Wax-wings on the trees by Willow 
creek; last year they came a few days 
earlier, namely January 26th: The blue- 
birds ought to be l^re now — has nobody 
March 19th. — A flock of Red-winged 
Blackbirds seen by Short creek. “Chw, 
Cr-h-e-e-r,” is their cry. 
March 31st. — At 7:15 a. m., something 
is tapping on the roof of the house. We 
go out to look — it is a red-shafted flicker, 
37 
