Approximate Dates When Birds Begin to Nest 



May : Third week. 



Fourth 



Some time during May. 



507 Baltimore Oriole 



517 Purple Finch 



540 Vesper Sparrow 



549 Sharp-tailed Sparrow 



550 Seaside Sparrow 



595 Rose-breasted Grosbeak 



612 Cliff Swallow 



624 Red-eyed Vireo 



627 Warbling Vireo 



631 White-eyed Vireo 



656 Black-and-white Warbler 



639 Bachman's Warbler 



659 Chestnut-sided Warbler 



68 1 Maryland Yellow-throat 



687 American Redstart 



722 Winter Wren 



724 Short-billed Marsh Wren 



725 Long-billed Marsh Wren 

 756 Wilson's Thrush 



428 Ruby-throated Hummingbird 



444 Kingbird 



459 Olive-sided Flycatcher 



598 Indigo Bunting. 



608 Scarlet Tanager 



641 Blue-winged Warbler 



648 Parula 



655 Myrtle Warbler 



662 Blackburnian Warbler 



677 Kentucky Warbler 



684 Hooded Warbler 



759# Hermit Thrush 



298 Canada Grouse 



445 Gray Kingbird 

 567*2 Carolina Junco 



575 Pine-woods Sparrow 



597 Blue Grosbeak 



604 Dickcissel 



622 Loggerhead Shrike 



637 Prothonotary Warbler 



751 Blue-gray Gnatcatcher 

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