70 BREWSTER'S WARBLER. 



12. Meeker, Auk, 1906, 23, p. 104. Bethel, Conn., June, 1906. Chrysoptera 



cT, pinus 9, nest and five young. [One of them found, June 16, after 

 leaving the nest, appeared to be a typical young pimts. A pinus d' was 

 also present. Neither of the males was seen to feed the young, nor is it 

 stated that either male was seen feeding the female. Proof as to which male 

 was the mate of the female m this interesting case is therefore lacking in 

 the published record. Moreover, pinus and kucobronchialis look so much 

 alike at the time they leave the nest, that the author's identification of 

 the young bird as pinus is of no value unless he is very familiar with 

 leucobronchialis in juvenile plumage.] 



13. Granger, Auk, 1907, 24, p. 343, Faxon, Auk, 1907, 24, p. 444, Maynard, 



Warblers of N. E., Addenda, 1908, p. 139-140, pi. xiii. Jamaica 

 Plain, Mass., June, 1907. Leucobronchialis (? mated with chrysoptera 9, 

 nest and young. 



14. Maynard, Rec. Walks and Talks, 1908, 1, p. 79-80, Sherman, Auk, 1910, 



27, p. 444. Jamaica Plain, Mass., June, 1908. Leucobronchialis cf 

 mated with chrysoptera 9 . [Same locality as No. 13.] 



15. Peters, The Wren, 1909, 1, p. 45. Braintree, Mass. Chrysoptera cf and 



leucobronchialis 9 , nest and young which died in the nest. 



16. Bishop, Auk, 1910, 27, p. 464. Woodmont, Conn. Lawrencei cf probably 



mated with pinus 9 , nest and four eggs; all were' collected; June 4, 1909. 



To these sixteen cases are now to be added the two treated of in this paper, 

 both of them being cases of the union of chrysoptera cj' with leucobronchialis 9 . 



Among observations belonging to the second category, i. e., of young birds one 

 of whose parents alone was seen but whose plumage nevertheless pointed to a 

 mixed parentage I have noted the following: 



1. Brewster, Bull. N. O. C, 1881, 6, p. 220-221. Highland Falls, N. Y., July 7, 



1879. Lawrencei 9 with a young one which is clearly a leucobronchialis. 



2. Fisher, Auk, 1885, 2, p. 378-379. Sing Sing, N. Y. Chrysoptera 9 feeding 



young with first-autumn plumage of pinus, July 4, 1885, yellow below, 

 wing-bars white [Coll. J. E. Thayer, no. 8775]. Another of the young 

 resembled the mother, no yellow on the breast. 



3. Bishop, Auk, 1894, 11, p. 79-80. New Haven, Conn. Leucobronchialis ( 9 ?) 



feeding two young, July 4, apparently H. pinus. In one the wing-bars 

 were white, in the other they were broader and light yellow. 



