NORTHERN BLACK-THROATED GREEN WARBLER 291 



soula, August 31. Wyoming — Laramie, October 18. Colorado — ^Fort 

 Morgan, October 12. Utah — Bryce Canyon, October 7. Arizona — 

 Mineral Creek, Pinal County, November 2. New Mexico — near 

 Corona, October 18. Oklahoma — Kenton, September 27. Texas — 

 Glenn Springs, Brewster County, October 19. Chihuahua — Durazno, 

 November 7. 



Early dates of fall arrival are : Oregon — Fremont National Forest, 

 August 20. California — August 26. Utah — Beaver Creek Canyon, 

 August 10. Arizona — San Francisco Mountain, August 21. Wyo- 

 ming — Laramie, August 11. Colorado — Estes Park, August 14. New 

 Mexico — Apache, August 2. Texas — Pulliam Canyon, Chisos Moun- 

 tains, August 2G. Chihuahua — Saltillo, August 28. Guatemala — 

 Tecpan, September 2. El Salvador — Divisadero, September 27. 



CosimI records. — On May 12, 1868, a Townsend's warbler was col- 

 lected near Coatesville, Pa. A female sepcimen was collected Septem- 

 ber 17, 1939, at Gulfport, Miss. On August 18, 1934 one was reported 

 seen at East Hampton, Long Island ; another was closely observed by 

 several competent observers in Prospect Park, Brooklyn, N. Y., May 

 8 to 10, 1947. 



Egg dates. — British Columbia : 2 records, June 7 and 24. 



Oregon : 3 records, June 7 to 21. 



Washington : 18 records. May 24 to June 24 ; 9 records, June 8 to 

 19, indicating the height of the season (Harris) . 



DENDROICA VIRENS VIRENS (Gmelin) 



NORTHERN BLACK-THROATED GREEN WARBLER 



Plates 36-38 



HABITS 



The northern black-throated green warbler I have always asso- 

 ciated with the white pine woods, the delightful fragrance of fallen 

 pine needles carpeting the forest floor, and the murmuring of the 

 warm summer breeze. The song has been written as "trees, trees, 

 murmuring trees," appropriate words that seem to call vividly to 

 mind the pretty little bird in its sylvan haunts and its delicious and 

 soothing voice. 



In southeastern Massachusetts, from late April until after midsum- 

 mer one can seldom wander far in the thick groves of white pine 

 {Pinus strohits), either in the open stands or in mixed woods where 

 these pines predominate, without hearing the delightful drawling 

 notes of this warbler, though the tiny singer in the treetops is not so 

 easily seen. It is not, however, exclusively confined even in the breed- 

 ing season to such woods, for sometimes we find it in open stands of 



