Birds and Seasons 65 



row, Field Sparrow; 10-20, Bartramian Sandpiper, Spotted Sandpiper, Yellow-bellied 

 Sapsucker, Chimney Swift, White-throated Sparrow, Barn Swallow, Swamp Sparrow, 

 Myrtle Warbler, Purple Martin, Brown Thrasher, Ruby-crowned Kinglet; 20-30, Wil- 

 son's Snipe, Solitary Sandpiper, Kingbird, Crested Flycatcher, Least Flycatcher, Bobolink, 

 Baltimore Oriole, Grasshopper Sparrow, Cliff Swallow, Bank Swallow, Scarlet Tanager, 

 Red-eyed Vireo, Warbling Vireo, Black-and-white Warbler, Blue-winged Warbler, 

 Nashville Warbler, Yellow Warbler, Black-throated Green Warbler, Palm Warbler, 

 Ovenbird, Maryland Yellow-throat, Redstart, House Wren, Catbird, Wood Thrush, 

 Wilson's Thrush, Olive-backed Thrush. 



May Migrants. — May 1-5, Orchard Oriole, Rose-breasted Grosbeak, Indigo Bunting, 

 Yellow-breasted Chat, Yellow-throated Vireo, Cerulean Warbler, Blackburnian Warbler, 

 Green-crested Flycatcher; 5-10, White-crowned Sparrow, Parula Warbler, Tennessee 

 Warbler, Cape May Warbler, Bay-breasted Warbler, Black-throated Blue Warbler, 

 Magnolia Warbler, Canadian Warbler; 10-15, Yellow-billed Cuckoo, Black-billed 

 Cuckoo, Ruby-throated Hummingbird, Wood Pewee, Black-poll Warbler, Mourning 

 Warbler; 15-20, Least Sandpiper, Traill's Flycatcher. 



APRIL AND MAY BIRD-LIFE AT GLEN ELLYN (NEAR CHICAGO), ILLINOIS 

 By Benjamin T. Gault 



With the real opening of spring, which may take place here anywhere 

 between the 15th and 25th of April, it is clearly observable that a new order 

 of things is apparent on every hand, though we do not feel that the season 

 is actually upon us until the hepatica and the little spring beauty have con- 

 tributed their matchless charms to the yet incipient plant -life of our hitherto 

 flowerless woods. Even then it is sometimes a question more undecided 

 than otherwise when we carefully take into account the weather. The 

 birds, too, ofifer us almost a parallel illustration when we stop to consider 

 and study their ways. The largely insectivorous species, the true harbingers 

 of spring, do not appear in anything approaching wave-like movements 

 until about the closing days of the month, or when the rejuvenating in- 

 fluences of milder weather have set into active motion the various forms of 

 insect -life. Several species that have passed the winter with us, or made 

 their appearance during the days of February and March, now make their 

 exit for more northern breeding latitudes; and of this class we may mention 

 the Tree Sparrow, Short -eared Owl, Rough -legged Hawk, Junco and 

 Fox Sparrow; also the Rusty Grackles, which have added so largely to the 

 animated life of the woodlands during the earlier days of the month. At 

 this period they are great ground-searchers for the several kinds of larvas 

 snugly hidden beneath the dead and moistened leaves, and as they pass 

 hither and thither in restless flocks through the woods, prospecting as they 

 go, they present indeed a most interesting sight. 



Our early breeders, the Hawks and Owls, Crow, Jay and White-rumped 

 Shrike, are covering well-advanced eggs by this time. 



In favorable seasons we may confidently look for the arrival of the Bobo- 

 link, Baltimore Oriole and, possibly, the Rose -breasted Grosbeak, during 



