30 PROCEEDINGS OF THE 



very solicitous, often flying within reach of my hand and some- 

 times alighting and lying for a moment upon the dense, green 

 hemlock needles, with quivering outspread wings and tail. 



The nest was situated about thirty feet from the ground, in a 

 thick mass of foliage formed by the first branch of the hem- 

 lock. There were only a few stubs between this branch and the 

 earth. The nest, surrounded on all sides by foliage so dense as 

 to effectually conceal it from below, was placed about two feet 

 from the trunk at the fork of a small branch. It was fairly 

 well constructed, and was composed of hemlock twigs, dry 

 grass, a few strips of weed fiber, and lined with finer materials. 

 The young, which were apparently about two days' old, were 

 very weak, and lay motionless while I was at the nest. 



The next year, 1909, I left for the Poconos, on June 16th, 

 and the next morning was again at the edge of the Primaeval 

 Forest, at exactly the place spoken of previously, with the 

 the woods cool and still, the Wallenpaupack foaming over the 



rocks down below me, and the birds singing everywhere, 



as though a day, and not a year, had elapsed since I had been 

 there. 



My attention was immediately drawn to a rich, ringing song 

 from the second-growth, but it was sometime before I located 

 the singer, flitting from bush to bush, and identified him as a 

 male Mourning Warbler, my first record for the Poconos. That 

 second-growth offered a very dense tangle in which to look for a 

 nest, but I set to work. Two nests of the Chestnut-sided War- 

 bler rewarded my efforts, but no success attended my endeavor 

 to locate the nest of the bird whose song rang in my ears de- 

 risively. 



Throughout my search for the nest of the Mourning Warbler 

 I had been half-conscious of a persistent, faint, sharp chipping, 

 which came from overhead. At last I saw the bird flitting about 

 in the shadows above me, and it proved to be, as I had thought, 

 a female Blackburnian Warbler. In a few moments she flew to 

 the lowest branch of a large hemlock standing out in the sec- 

 ond-growth and there disappeared. I approached; and this time, 

 before ascending the tree, I saw the nest. It was placed upon 

 the first branch, twenty-eight feet from the ground, located at a 



