171 
braska, May 9, and 44° 21’ in Dakota, May 22. Farther west, almost at 
the extreme limit of its western dispersion, it was observed at Gaines- 
ville, Tex., and Ellis, Kans, The full record from Saint Louis is as fol- 
lows: 
April 26, first (three males at stands calling); April 28, bulk of males arrived (in 
all the notes the bulk of the species averaged about four days behind the first); May 
3, first females (the average for females was seven days behind the first, and as the 
arrivals of the bulk may be separated into two series, one about two or three days in 
the rear of the firsts, and the other of seven or eight, it is evident that the first series 
indicates the arrival of the bulk of the males, while the second indicates the increase 
of the species as a whole, caused by the arrival of the females); May 5, bulk of fe- 
_males and many transients arrived, making this day the height of the season. (As 
has already been stated, this day and the next were the days of special movement of 
this species, and this seems to have been true over an immense area of country, 
stretching from latitude 34° to latitude 44°.) May 10, the first one-year-old male 
arrived; May 11, species very much excited, and transient birds of last year present; 
May 31, set found of six incubated eggs. 
In the fall of 1884 the bulk and the last individual left Williamstown, 
Towa, August 8. The bulk left Des Moines, Iowa, August 26; the last 
was seen there August 30. At Mount Carmel, Mo., none were seen after 
the middle of the month, and at Gainesville, Tex., they were seen 
August 20. 
In the spring of 1885 the migration of the Baltimore Oriole in the 
Mississippi Valley, so far as our stations are concerned, began April 15, 
when the species was seen at Corinth, Miss. April 20 it reached Shaw- 
neetown, Ill., and Saint Louis, Mo. Two days later it appeared at Paris, 
Ill, one degree farther north. April 25 and April 26 it was reported 
from Aledo, Ill.,and Mount Pleasant and Keokuk, Iowa. April 29 and 
April 30 the movement extended northeastward up the Rock River Val- 
ley to Batavia, Ill., Hennepin, Ill., and Clinton, Wis. On the Iowa River 
they appeared at Iowa City and Coralville, lowa, May 1: .At Des Moines, 
Iowa, they were not seen until May 3. May 5 a large wave brought 
them to Williamstown, Iowa, and carried them up the Mississippi River 
to Lake City, Minn., and to Ripon and Leeds Centre, Wis. No further 
advance was made until after the cold snap; then on the 13th and 14th 
of May they appeared at Green Bay and River Falls, Wis., and Elk 
River, Minn. Hither they traveled earlier on the Plains (where they were 
noted from Manhattan, Kans., April 21, and Linwood, Nebr., April 24), 
or else they moved very fast in the latter part of their course, for they 
were reported from Ossowo, Manitoba, May 15; Shell River, Manitoba, 
May 16, and Oak Point, Manitoba, May 19. In the fall of 1885 the 
last migrants were reported from Heron Lake, Minn., September 9; 
Grinnell, Iowa, September 16; Fayette, Mo., September 1; and from 
Bonham, Tex., September 5. 
508. Icterus bullocki (Swains.), [272.] Bullock’s Oriole. 
This is a bird of the far west, coming east to the western edge of 
our district. In Dakota it seems to be tolerably common from the 
