THE OOLOGIST 



147 



of the surroundings there were larger 

 witch hazel, viburnum, maple, chest- 

 nut and hickory sprouts. 



15. Chestnut-sided Warbler. In the 

 bushy clusters at the base of Bear 

 Mountain, near the trail leading up 

 the slope, the Chestnut-sided Warbler 

 is one of the common frequenters of 

 the shrubbery. Near the place where 

 the Yellow-breasted Chat was nesting, 

 I found a nest of Chestnut-sided War- 

 bler on June 8. It was located in the 

 margin of a shown bank of purple 

 flowering raspberry. The site was 

 against an upright fork of this shrub, 

 completely covered by the leais can- 

 opy, and the structure was held in 

 place by adjoining stems, about two 

 feet from the ground. This nest was 

 made outwardly nearly altogether of 

 narrow dried grasses and shreds of 

 weed-stems, rather loosely woven and 

 colled together, having the appearance 

 of careless workmanship. The lining 

 was made of very fine brown grasses 

 and some horsehair. The parent birds 

 were actively engaged in feeding the 

 recently hatched young in this nest, 

 and they chirped quietly nea. the 

 place while I examined their house- 

 hold arrangements. 



16. Golden-winged Warbler. For the 

 first time I was able to study this 

 interesting Warbler at close range, 

 while staying at the Guest House in 

 the interior of the Park, on the Kanah- 

 wauke lakes. 1 observed a pair of 

 Golden-winged Warbler acive in fiy- 

 ing will food into a patch of swamp 

 fern, in a litle grassy area bordering 

 he public highway. Several small 

 saplings in the margin of the fernery 

 gave the Warblers a protected ap- 

 proach to the nest, from which sta- 

 tion they would drop into the swamp- 

 grasses. When I was within sight, 

 the female would keep in the sap- 

 lings, chirping anxiously, while the 

 male seemed to make efforts to en- 



courage and assure his timid spouse, 

 for he would make frequent sallies 

 nearer to me and return to her apar- 

 ently to induce her to follow him down 

 to the nest with her bit of food. At 

 length she followed her mate into the 

 ferns at the foot of the sprouts, and 

 thereafter they both made regular 

 trips away and back into the ferns re- 

 gardless of me. The male was not 

 heard to sing at any time near the 

 place. After sufficient observation to 

 satisfy myself regarding the location 

 of the nest, I crawled down among the 

 ferns and swamp-weeds, and parting 

 the soaked vegetation carefully, I 

 found the nest set beside the base of 

 a fern-clump, low on the ground be- 

 side the exposed roots of the grasses. 

 There were three half-grown young in 

 the nest. A month later I collected 

 the discarded nest, when it was found 

 to have no firmness of structure so 

 that it could be removed and retain 

 its original shape. It was made of 

 fragments of dead leaves and bark, 

 with a very little bedding of fine 

 grases, all the materials being dark 

 brown in color and almost moist in 

 situ. 



17. Least Flycatcher. On Juno 12 I 

 observed a Least Flycatcher at work 

 on a nest in a clump of young trees 

 back of the Guest Home garage. The 

 site was an upright fork on a slender 

 oblique branch about fifteen feet from 

 the ground. The foundation was near- 

 ly finished, and the builder was begin- 

 ning to fashion and walls. Her method 

 of building was to stick the material 

 low on the outside and then pull it 

 up around in place, thus constructing 

 from the base upward on the outside. 

 Only one of the owners was seen at 

 any time during this construction 

 work. On June 13 I noted that the 

 Flycatcher built up the walls of her 

 nest by sitting or standing in it, and 

 reaching down on the outside, she 



