MONTHLY BIRD LIFE • 99 



song. So apparently complete is the disappearance of birds in 

 August, that before the fall migration brings new arrivals daily 

 from the north, one may spend hours in the woods and hear only 

 the Red-eyed Vireo and the Wood Pewee, xA.ugust's own songsters. 

 Late in the month, migrants from the north travel through the 

 woods in small companies, but the characteristic bird-life of Au- 

 gust is in the marshes. There the Swallows come in increasing 

 numbers to their roosts in the reeds, while Red-winged Blackbirds 

 and Bobolinks, under the alias of Reedbird, are abundant where 

 the wild rice grows. 



BIRDS OF THE MONTH. 



Pcnitancnt Residents, see page (S'5. 



Summer Residents, see page 86. 

 Migrants arriving from the North. 

 August I to 15. 

 Sora. Golden-winged Warbler. 



Semipalmated Sandpiper. Chestnut-sided Warbler. 



Semipalmated Plover. Canadian Warbler. 



Yellow-bellied Flycatcher. Small-billed Water-Thrush. 



August 15 to 31. 

 Olive-sided Flycatcher. Black-throated Green Warbler. 



Tennessee Warbler. Black-throated Blue Warbler. 



Nashville Warbler. Magnolia Warbler. 



Parula Warbler. Blackburnian Warbler. 



Cape May Warbler. Wilson's Warbler. 



Red-breasted Nuthatch. 



September Bird-Life. — The student whose patience has been 

 sorely tried by the comparative scarcity of birds in August will 

 find that in September his observations in the field will be attended 

 by far more interesting results. The first marked fall in the tem- 

 perature is sure to be followed by a flight of migrants which, like 

 the "bird waves" of May, will flood the woods with birds. By 

 far the larger number will be Warblers ; indeed, September, like 

 May, is characterized by the abundance of these small birds. 



Birds of the year will outnumber the adidts, and in most 

 cases their plumage will be quite unlike that worn by their parents 

 in May. In many instances, even the adults themselves appear 

 in a changed dress. As a rule, fall plumages are less striking than 

 those of spring, and when, in addition, it is remembered that birds 

 are not in song, and that the foliage is much denser, the greater 

 difficulty of identifying birds in the field will be appreciated. 



About September 25 our more common Winter Visitants arrive 

 from the north, but afterward birds decrease rapidly in number. 



