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Full text of "Additional Notes on the Brewster's Warbler in the Arnold Arboretum, Jamaica Plain, Mass"

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444 


General Notes. 


fAiik 
LOct. 

Both wings and tail light gray underneath. Two yellow^ bars on each wing, 
not so broad as in H. chrysoptera . A black line through the eye; sides of 
neck a little whitish; chin, throat, breast, sides, and belly decidedly yellow^, 
this color being strongest on the breast. Some bluish gray feathers on the 
upper back and wings. Eyes hazel. Bill black. Tarsi and feet greenish 
black. Length, 5.05 in.; extent, 7.75; wing, 2.40; tail, 1.90; tarsus, 
.75; middle toe, .50; bill, .40. This specimen is now’^ in my collection. — 
H. G. Higbee, Hyde Park, Mass. 

Additional Notes on the Brewster’s Warbler in the Arnold Arboretum, 
Jamaica Plain, Mass.^ — The five eggs hatched June 15; the young left 
the nest June 22, after remaining in the nest but seven days. This tallies 
exactly with wLat I observed in a nest of Helminthophila chrysoptera in 
Arlington, ^lass., in 1897: the five eggs hatched June 8, the young quit 
the nest June 15. 

An agent was sent from the ^Iiiseum of Comparative Zoologj^ on the 22d 
to collect the young birds and the two parents, but he w^as forbidden by 
the authorities of the Arboretum to shoot any of them. The nest is now- 
in the ^luseiim (No. 5083). The parent birds in this case were, as far as 
I could see, a normal male H . leucobronchialis without any yellow' below', 
and a female H. chrysoptera (essentially), the only abnormal mark that I 
could detect on her being a blackish line bounding the gray cheek patches 
above and separating them from the white superciliary streaks. The five 
eggs, it may be noted, w ere dark-spotted near the larger end and appeared 
like those of H. chrysoptera. — Walter Faxox, Lexington, Mass. 

Helminthophila leucobronchialis (Brewst.) in Lexington, Mass. — On 
the 14th of June, 1907, while walking in company with Dr. Winsor M. 
Tyler through a hillside pasture sloping down to a wooded swamp in the 
town of Lexington. ^lass., I came upon a male Brewster s Warbler in full 
song. This bird was often scrutinized by Dr. Tyler and myself at short 
range and with the aid of powerful glasses, from this time forth up to the 
end of June, about w'hich time it stopped singing and disappeared from 
view'. It wore the pure, unadulterated leucobronchialis dress, revealing 
not the slightest trace of yellow- on the low-er parts, even when seen at 
close quarters and by the aid of the most favorable light. Its crown w^as 
bright yellow', lores black, this color continued behind the eye as a short, 
thin po.stocular streak (as in H . pinus). Back gray (as in H. chrysoptera). 
Wing-patch yellow', indistinctly divided into two bars. Lower parts silk- 
white, purest on the chin and throat. 

There were tw'o male H. chrysoptera in the immediate neighborhood — 
so near that all three could be heard singing at the same time. The 
Brewster’s Warbler had two different songs, absolutely indistinguishable 
from two of the songs of the Golden-winged Warbler. The first of these 


^ See Note by Helen Granger, in the July number of ‘ The Auk,’ p. 343.