Approximate Dates When Birds Begin to Nest 
May: Third week. 
Some time during May. 
507 
517 
540 
549 
550 
595 
612 
624 
627 
631 
636 
639 
659 
681 
687 
722 
724 
725 
756 
428 
444 
459 
598 
608 
641 
648 
Baltimore Oriole 
Purple Finch 
Vesper Sparrow 
Sharp-tailed Sparrow 
Seaside Sparrow 
Rose-breasted Grosbeak 
Cliff Swallow 
Red-eyed Vireo 
Warbling Vireo 
White-eyed Vireo 
Black-and-white Warbler 
Bachman’s Warbler 
Chestnut-sided Warbler 
Maryland Yellow-throat 
American Redstart 
Winter Wren 
Short-billed Marsh Wren 
Long-billed Marsh Wren 
Wilson’s Thrush 
Ruby-throated Hummingbird 
Kingbird 
Olive-sided Flycatcher 
Indigo Bunting. 
Scarlet Tanager 
Blue-winged Warbler 
Parula 
Myrtle Warbler 
Blackburnian Warbler 
Kentucky Warbler 
Hooded Warbler 
Hermit Thrush 
Canada Grouse 
Gray Kingbird 
Carolina Junco 
Pine-woods Sparrow 
Blue Grosbeak 
Dickcissel 
Loggerhead Shrike 
Prothonotary Warbler 
Blue-gray Gnatcatcher 
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