I02 Bird -Lore 



not appear in the lists of arrivals in previous numbers, because they are 

 too irregular and too scarce to determine their dates of arrival, even ap- 

 proximately. 



July witnesses a good deal more activity of southward movement among 

 the summer resident birds, but a careful search during the whole of the 

 month has failed to bring to light any stragglers from the north. The 

 molting period so drives the birds into seclusion that it is difficult to 

 be sure that the apparent decrease in the numbers of species is really a 

 decrease, or that they are only in hiding. Toward the end of the 

 month most of the birds have wholly deserted their nesting places, and 

 must be looked for in other places where concealment is easy. The 

 larger Hawks have already renewed their fall dress, but the hot weather 

 holds them in retirement. At this time they seem to be less alert than 

 is their habit, for many times I have stolen upon them within almost 

 reaching distance. I have often wondered if the presence of Lake Erie, 

 lying as a barrier to southward migrations as it does to the northward, 

 might not account for the lack of northern breeding Warblers and shore 

 birds in July. Do they prefer to pass around the ends of the lake until 

 the advancing season makes a more direct return necessary ? 



SPECIES PRESENT DURING JUNE AND JULY 



For permanent residents see Bird-Lore, December, 1900, page 186. 



Killdeer, Red-winged Blackbird, Meadowlark, Bronzed Grackle, Robin, Bluebird, 

 Mourning Dove, Belted Kingfisher, Cowbird, Towhee, Migrant Shrike, Great Blue 

 Heron, Phoebe, Vesper Sparrow, Pied-billed Grebe, Chipping Sparrow, Field Sparrow, 

 Bartramian Sandpiper, Spotted Sandpiper, Yellow-bellied Sapsucker, Chimney Swift, 

 Barn Swallow, Purple Martin, Brown Thrasher, Kingbird, Crested Flycatcher, Least 

 Flycatcher, Bobolink, Baltimore Oriole, Grasshopper Sparrow, Cliff Swallow, Bank 

 Swallow, Scarlet Tanager, Red-eyed Vireo, Warbling Vireo, Blue-winged Warbler, 

 Yellow Warbler, Ovenbird, Maryland Yellow-throat, Redstart, House Wren, Catbird, 

 Wood Thrush, Wilson's Thrush, Orchard Oriole, Rose-breasted Grosbeak, Indigo 

 Bunting, Yellow-breasted Chat, Yellow-throated Vireo, Cerulean Warbler, Green- 

 crested Flycatcher, Yellow-billed Cuckoo, Black-billed Cuckoo, Ruby-throated Hum- 

 mingbird, Wood Pewee, Traill's Flycatcher, Least Bittern, Nighthawk, Whip-poor-will, 

 Lark Sparrow, Dickcissel, Tree Swallow. 



JUNE AND JULY BIRD-LIFE AT GLEN ELLYN (NEAR CHICAGO) ILLINOIS 



By Benjamin T. Gault 



The jfinal days of May have witnessed the disappearance of the 

 transient migrants, and, though some of our later Warblers, the Con- 

 necticut and Black -throated Green, may have extended their visit for a 

 brief spell longer — occasionally well into June — we must regard them at 

 this season strictly as loiterers. 



On the whole, it is far safer in concluding that with the departure 



