1914 J Cooke, Winter Birds of Oklahoma. 493 



106. Polioptila caerulea caerulea. Blue-gray Gnatcatcher. — 

 Probably nested but was not noted until September 10; by that time most 

 of the summer birds had gone, but a few lingered to November 6. No more 

 were seen until, on March 25, they were so common that a full hundred were 

 seen in a three mile walk. One bird was heard to give a long, and beautiful 

 and perfect trill, — a note which was not heard again from a Blue-gray 

 Gnatcatcher, until the spring of 1913 at Washington, D. C. 



107. Hylocichla guttata pallasi. Hermit Thrush. — Two seen 

 November 29, the first day the bottomland was visited. It remained in 

 small numbers through the winter and was last seen March 1, though most 

 likely some birds remained to a later date. 



108. Planesticus migratorius migratorius. Robin. — A flock of 

 fifty flying south at 4 p. m. November 3, was the first of the season; no 

 more were seen until November 29, and then only a few. The number were 

 never great but a few could be found almost any time, and they began to 

 sing January 31 . Several were seen February 23, while three days later the 

 numbers had more than doubled. On March 5, a party of Robins was 

 feeding on the ground, strangely enough every bird seen previous to that 

 time had been perched on bush or tree. They were most common March 

 15, but left within the next ten days. 



109. Sialia sialis sialis. Bluebird.— Not seen until September 8, 

 though of course it had been present all the time, since it breeds at Caddo, 

 where it is reported to nest in town early in the spring and then spend most 

 of the rest of the year in the thick woods. To November 29 less than a 

 dozen had been seen in all, but on that day they were found common in 

 the heavy timber along the Blue, and they remained so ail winter. They 

 became decidedly less numerous after February 23, and none at all were 

 seen during the last week in March. 



110. Sialia currucoides. Mountain Bluebird. — Seen once during 

 the fall. 



