Vol 'l9l9 XVI ] Philipp and Bowdish, New Brunswick Birds. 43 



and was rather more substantially built than the average nest of this 

 species. In the light of much added experience, our earlier statement that 

 the usual number of eggs is five is subject to correction, since it appears 

 that more full layings of six eggs are to be found than of five. In most 

 respects, however, data acquired in the past two years substantiate that 

 secured in 1915 and 1916, and previously recorded. 



Compsothlypis americana usneae. Northern Parula Warbler. — 

 While no nest was located, birds were seen on various occasions, both in 

 1917 and 1918, and in the latter year a male in full song was always to be 

 found about a particular group of trees, where the abundance of usnea 

 moss afforded innumerable ideal nesting sites. 



Dendroica castanea. Bay-breasted Warbler. — This species ap- 

 peared to be much more abundant during the past two summers than in 

 either of the two preceding. Notwithstanding this abundance, in 1917 

 only five nests with complete layings were found, two of five, two of six, 

 and one of seven eggs. The earliest was not complete until June 29, and 

 it is probable that many nests were still unbuilt at the time we left. In 1918 

 we examined a total of thirty-eight occupied nests, complete layings being 

 about equally divided between five and six eggs, with one exception, in 

 which case a bird was incubating three eggs. The first nests, with five and 

 six eggs, were found on June 15, and nests were still being built when we 

 left on July 2. No nests with seven eggs were found this year. 



Dendroica virens. Black-throated Green Warbler. — A nest 

 containing five well incubated eggs was found in a little cedar, about four 

 feet from the ground, June 20, 1918. 



Dendroica palmarum hypochrysea. Yellow Palm Warbler. — 

 In 1917 a total of seven nests was found; June 19, four eggs; June 20, 

 four eggs; June 21, four eggs, five eggs; June 23, four eggs; June 25, four 

 eggs; July 1, five eggs. Lateness of season was more apparent in the nest- 

 ing of this species than, perhaps, any other. In 1918 the birds appeared 

 less numerous than in previous years, and the only nest located was one 

 containing five newly hatched young, June 12. By the 19th these birds 

 had left the nest. 



Setophaga ruticilla. Redstart. — Two nests with five eggs each were 

 observed in 1918, June 19 and 24. 



Penthestes hudsonicus littoralis. Acadian Chickadee.— On June 

 5, 1917, a nest was found, nearly or quite completed, in a natural cavity 

 in a cedar stump, about two feet from the ground. On June 16 the bird 

 was sitting hard on five eggs, and was persuaded to come out only with 

 great difficulty. As she laid no more, this was apparently her full lay- 

 ing. On June 24 a nest containing seven quite small young was found 

 in a knot hole in a small live spruce. On June 13, 1918, another nest with 

 young was found in a cavity in the top of a dead and rotten stub, about 

 ten feet from the ground. This nest was very near the site of the 1917 nest 

 with young, very possibly belonging to the same pair of birds. 



