8 
1871 
UPTON, MAINE 
entirely replaced by its prototype H.perigrina. 
34. Helminthrophaga perlgrina . Very common, found everywhere 
in the woods, but especially partial to cedar swamps and thick¬ 
ets of tall firs: kept always high up in the tree tops and was 
very restless, frequently tqking long flights. Sang at all 
times of the day: its note was very like that of H.ruficapilla 
but more prolonged shrill and rapid and frequently it would re¬ 
peat it a number of times in succession without the slightest 
pause -until it seemed wonderful that the bird could take breath 
it had also a habit of singing on wing especially just as it 
was coming down from a long flight. The female had a sharp 
chirp precisely like that of H.ruficapilla: they usually kept 
rather nearer the ground than the males, where they undoubtedly 
bred: shot a female June 7th that had commenced incubation 
and others previously that had laid all but one or two eggs: 
were not fortunate enough however to find the nest. 
35. Sierus aurocapillus . Found sparingly in the woods. 
36. Sierus noveboracensis . Rather scarce: heard them occa¬ 
sionally in the swampy thickets. 
37. Dendroica virens . Not common In the woods. 
38. D.caerulescens . Rather scarce In the heavy timber. 
39. D,coronata. Quite common in the fir thickets. Found it 
breeding in an old pasture grown up to small firs. Three nests 
found June 8th and 9th were built about breast high in a fir 
savin and contained four eggs each, all far advanced towards 
incubation. The nests were all quite large, deeply hollowed 
and link'd principally with feather. 
