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I02 Bird -Lore not appear in the lists of arrivals in previous numbers, because they are too irreijular 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, Phcebe, Vesper Sparrow, Pied-billed Grebe, Chipping Sparrow, Field Sparrow, Bartramian Sandpiper, Spotted Sandpiper, Yellow-bellied Sapsucker, Chimney Swiff, 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 CHICAGOi ILLINOIS Bv Benjamin T. Gault The ifinal 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