Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Helminthophila leucobronchialis. o@. First winter plumage, Lexington, Mass., W. Faxon, 
July 14, 1910. Coll. Mus. Comp. Zoél., No. 48385. The father of this bird was H. chrysop- 
tera of typical plumage, the mother a typical H. leucobronchialis. X 1. 
Helminthophila chrysoptera. Juvenile plumage. Beaver, Pa., W. E. C. Todd, June 19, 1900. 
Coll. Carnegie Mus., No. 7100. X 1. 
Helminthophila pinus. @. Juvenile plumage. Near New York City, July 5, 1889. Coll. 
J. Dwight, Jr., No. 2285. X 1. ; 
Helminthophila (offspring of H. pinus @ and H. chrysoptera 2). co. Juvenile plumage 
at time of quitting the nest. Portland, Conn., June 13, 1889. Coll. J. H. Sage, No. 1321. 
xX 1. 
