259 
its occurrence at Gainesville, Tex., where, it was taken May 16, 1884. 
Mr. Lloyd says it is abundant in Texas from Castle Hill to Pecos River, 
and probably breeds. It has not been reported from any other part of 
the district, but was taken in Dakota years ago by J. A. Allen. In the 
fall of 1884 another specimen was secured at Gainesville, Tex., Septem- 
ber 3. 
681. Geothlypis trichas (Linn.). [122.] Maryland Yellow-throat. 
The typical eastern Maryland Yellow-throat barely reaches the eastern 
border of the Mississippi Valley, where the prevailing form is interme- 
diate between it and the western. 
681la. Geothlypis trichas occidentalis Brewst. [—-.] Western Maryland Yellow- 
throat. 
This lately-described subspecies is the common Maryland Yellow. throat 
of the western part of the Mississippi Valley from western Manitoba to 
middle Texas. Throughout the middle and eastern portion of the Mis- 
sissippi Valley the prevailing form is intermediate between it and typical 
trichas, but, as Mr. Ridgway tells me, is nearer occidentalis than trichas. 
Hence all the records relating to Maryland Yellow-throats have been 
brought under the present subspecies. 
From its winter home in the Southern States and southward this 
Warbler began its pilgrimage in the spring of 1884 early in March. By 
March 13 it had appeared at Gainesville, Tex., but nothing more was 
heard of it until April 18, when it arrived at Saint Louis. April 27 
found it at Danville, Il., and April 30 was a day of great migration in 
Iowa, where it was reported from latitude 41° 38’, latitude 41° 40’, and 
latitude 43° 15’; May 2 it had advanced to latitude 43° 43’ in Minne- 
sota; May 10 to latitude 45° 25’; and May 26 it had penetrated even to 
Oak Point, Manitoba. The-bulk was found eight to twelve days in the 
rear of the advance. 
In the fall of 1884 the bulk of Maryland Yellow-throats was reported 
as leaving Williamstown, Iowa, August 22, and the last six days later. 
At Des Moines, Iowa, the last was reported August 11. At Mount 
Carmel, Mo., the last one left September 22. 
In the spring of 1885 the earliest note came from San Angelo, Tex., 
where the first was seen April 4,and the species was common the next 
day. April 20 it appeared at Saint Louis, Mo., and Odin, Ill. April 21 
one was noted from Paris, Ill. During the three days from April 23 to 
April 25 Maryland Yellow-throats were seen at Emporia, Kans.; Iowa 
City, Iowa; Newton, Iowa; Grinnell, Iowa; and Hennepin, Ill. May 
3 found them at Unadilla, Nebr., and a further advance (May 8 and 9) 
brought them to Huron, Dak.; Coralville, lowa; La Porte City, Iowa; 
Waukon, Iowa; and Lanesboro, Minn. The next advance occurred 
May 14, bringing them to Delavan, Wis.; River Falls, Wis.; Heron 
Lake, Minn.; and Elk River, Minn. May 16 one was seen at White 
Earth, Minn. The bulk came to Saint Louis April 24, and the species 
was most abundant there April 27. 
