Vol. XXXIIII 

 1916 J 



Fry, Seasonal Decline in Bird Song. 



39 



The following species underwent a rapid decline : — 



Ovenbird 7 days. Maryland Yellow-throat 6 days . 



Kingbird 6 " ? Cowbird 7 " ? 



Scarlet Tanager 12 " Acadian Flycatcher 8 " 



The following underwent a gradual decline: — 



Robin 



Red-winged Blackbird 



Catbird 



Redstart 



Wood Thrush 



Yellow Warbler 



Crested Flycatcher 



Yellow-throated Vireo 



House W^ren 



Wood Pewee 



Red-eyed Vireo 



Song Sparrow 



Meadowlark 



Chipping Sparrow 



Towhee 



Black and White Warbler 



Flicker 



Barn Swallow 



Field Sparrow 



Grasshopper Sparrow 



Kingfisher 



The following had a revival of song: — 



(Ovenbird) 

 Redstart 

 Yellow Warbler 



The following did not reach the period of full song till near 

 the middle of July: — 



White-breasted Nuthatch. 

 Goldfinch. 



The following were singing regularly, though occasionally, at 

 the close of the period studied, August 10: — 



W^hite-breasted Nuthatch 



Redstart 



Yellow Warbler 



