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far south of our border, it appeared at Pierce City, Mo., May 2, and at 
Elk River, Minn., May 21. This gives an average of thirty-two miles a 
day. In 1883 its average rate over nearly the same ground was thirty- 
five miles aday. Mr. Widmann’s report from Saint Louis is as follows: 
“May 5, first, one old male, silent; May 7, bulk of males in song, and 
first female; May 10, in pairs; May 11, last male; May 17, last female.” 
Thus the entire time occupied by this species in passing Saint Louis was 
less than two weeks, while the stay of the Yellow-rumped Warbler at the 
same station was about seven weeks (March 23 to May 10). 
In the fall of 1884 the last Black and Yellow Warbler was reported 
from Des Moines, Iowa, August 26. 
In the spring of 1885 no records of its movements were received from 
the country south of Saint Louis, Mo., at which place the first came 
May 4. On the same date it was seen at Peoria, Ill., and the next day 
(May 5) at Iowa City, Iowa, Chicago, Ill., and Milwaukee, Wis. At 
Lanesboro, Minn., the first was seen May 10; at Heron Lake, Minn., 
May 14; at Durand, Wis., May 15; and at New Richmond, Wis., May 
18. At Saint Louis the bulk was present May 5 to May 14, and both 
at Saint Louis and at Des Moines, Iowa, the last was seen May 22. 
This is later than the dates noted at any of the more northern stations. 
In the fall of 1885 several appeared at Saint Louis, Mo., September 
17, but all left in the course of the next ten days. 
In Kansas it is a rare migrant (Goss). 
658. Dendroica czrulea (Wils.). [98.] Cerulean Warbler. 
Little can be said of this Warbler. Though not uncommon in the 
Mississippi Valley, its habit of keeping in the tops of the tallest trees; 
enables it to pass unnoticed. It leaves the United States in the fall, 
and in summer is found from the Gulf to Minnesota and west to east- 
ern Kansas and Nebraska. In the spring of 1884 the first arrived at 
Saint Louis April 14, and the bulk April 26. It was also seen at Bur. 
lington, Iowa, May 11, and there the record ends. 
In the spring of 1885 the record of the Cerulean Warbler at Saint 
Louis was as follows: 
April 17 the first was seen; April 17 the bulk of the males arrived at the stands; 
April 24-27 the bulk of the females arrived, and mating began. 
At Hennepin, IIL, the first was seen April 20, and at New Richmond, 
Wis., May 25. During the middle of October, 1885, Mr. Lloyd met 
with it in small flocks (“of five to eight”) in western Texas. 
659. Dendroica pensylvanica (Linn.). [99.] Chestnut-sided Warbler. 
Breeds throughout Manitoba and the Northern States, south to Iowa 
and northern and central Illinois. This is another of the well-known 
Warblers, but it was not noted by any of the southern observers. In 
the spring of 1884 it was not recorded until May 1, when latitude 39° 
was reached. The 43d parallel was crossed May 10, and latitude 45° 
30’ May 18. So rare is it in the West that it has been taken but twice in 
