Vol. XXIII 

 1906 



1 Bowdish, Warblers Breeding at Desmarest, N. J. 17 



The eggs hatched June 2, the tenth day after deposition. On the 

 4th I found the nest empty, the leaf covering gone, and the par- 

 ents crying about. A search finally discovered one young bird, 

 still living, directly under the nest. I replaced him and he was 

 cared for by the parents. He was still prospering on the 9th, and 

 the nest being empty on the 14th, I hope he had so developed as to 

 leave it of his own accord. 



This mother bird, while incubating, returned to her eggs with 

 the camera close to the nest. Operating with tube and bicycle 

 pump, I made several exposures, and she posed quite motionless 

 for exposures of 30 to 45 seconds, timed by watch. Young sev- 

 eral days out of the nest were seen June 17, 1905. 



The Yellow Warbler (Dendroica cestlva) is an abundant breed- 

 ing species, arriving early in May, or even before, and departing 

 in September. Here, as elsewhere, this bird seems partial to the 

 bushes growing on or near the banks of streams, for nesting sites. 

 It is exceedingly energetic, both as a larvae destroyer and a songster. 



The Chestnut-sided Warbler (Dendroica ■pensylvcmica) is an- 

 other of our abundant summer birds, and particularly endears 

 itself to the observer by its devotion to nest and contents. June 

 4, 1904, a nest was found about two feet from the ground in a black- 

 berry bush, at the edge of a wooded and bush-grown creek-bed. 

 It contained four eggs, and even at the first visit, the mother bird 

 would come on the nest while camera and operator were within 

 two feet of it. On several subsequent occasions when I visited 

 the nest, the bird showed the same solicitation for her charge and 

 a growing confidence. June 5 of the present year, a nest was found, 

 three feet up in a berry bush, in a slashing, containing four eggs. 

 These eggs hatched June 14, and a day or two later the young dis- 

 appeared. It was one of many tragic endings of attempts at house- 

 keeping by the birds, observed this year. The female, while not 

 as confiding as the bird of the previous year, was yet a brave little 

 mother, and posed quite still, for exposures of fifteen seconds. 



Black-throated Green Warbler {Dendroica virens). This is the 

 one noteworthy record of a breeding warbler for this locality. 

 June 5, 1904, while in a swampy piece of woods, a pair of these 

 birds appeared much disturbed. They soon disappeared, and 

 while still searching, I suddenly saw the female on the nest. The 



