MIGRATION OF OUR BIRDS 263 
writer is unable to explain. He thinks it was not due to milder 
weather in one year, for while there was a later date for many species 
in 1909, with others, the date was earlier than in rgr1. 
The following species were not observed after August 14: 
Red-winged Blackbird, Yellow Warbler, Orchard Oriole, Red- 
eyed Vireo, Yellow-throated Vireo, Maryland Yellowthroat, 
Dicksissel, Bobolink, Scarlet Tanager, Barn Swallow, Nighthawk, 
Shrike, and Fox Sparrow. 
AUGUST 27 White-throated Sparrow 
22 Alder Flycatcher arrived 
22 Least Flycatcher 29 Black-throated Green War- 
22 Black and White Warbler bler arrived 
23 Purple Martin Sena 
27 Yellow-bellied Flycatcher See re andy A 
30 Hermit Thrush arrived : Price Snir) 
31 Myrtle Warbler arrived : Ne oS 
: = cae 12 Chipping Sparrow 
1 Crested Flycatcher Sa siRiideet 
: pe ceeaeee Woedpecker 14 Winter Wren arrived 
3 Baltimore Oriole Se ee 
rs : 5 S ; 
SRnebud 16 Flicker : 
ape bied 17 Phoebe 
Sapsucker : : 
5 : 18 White-throated Sparrow 
Bok ESD SiON 20 Purple Grackle 
Ep cco 21 Hermit Thrush 
10 Wood Pewee Bon oan eee 
16 Vellow-billed Cuckoo Ae ee 
: 25 Kingfisher 
17 Brown Creeper arrived eset ee 
17 Snowbird arrived a Merete Warbler 
paeowuud 29 Field Sparrow 
20 Brown Thrasher 
20 Yellowlegs NOVEMBER 
21 House Wren 1 Bluebird 
22 Golden-crowned Kinglet 1 Canada Goose 
arrived. 4 Winter Wren 
24 Redstart 8 Cardinal 
24 Pine Warbler 8 Towhee 
27 Warbling Vireo I5 Song Sparrow 
27 Indigo Bird 15 Tree Sparrow arrived 
27 Hummingbird 18 Golden-crowned Kinglet 
