INTRODUCTION 31 



s (May 2-May 7) 



^-tSolitary Sandpiper Nashville Warbler 



*Pigeon Hawk Blue-winged Warbler 



Hummingbird Parula Warbler 



VX&ingbird Black-throated Blue Warbler 



Crested Flycatcher Chestnut-sided Warbler 



\x*Least Flycatcher *Prairie Warbler 



Baltimore Oriole *Northern Water-Thrush 



Orchard Oriole Hooded Warbler 



\**Grasshopper Sparrow ^^Kbrthern Yellowthroat 



Rose-breasted Grosbeak O0venbird 



Tanager ^*Iiedstart 



Warbling Vireo **^Catbird 



Yellow-throated Vireo \>*tVood Thrush 



White-eyed Vireo Veery 



Between May 9th and May 12th there is often another 

 well-marked " wave." During this period a few species arrive 

 with great regularity. In backward seasons many of the 

 species in the last list do not arrive until this "wave," which 

 brings : 



(May 9-May 12) 



Acadian Flycatcher Blackburnian Warbler 



Red-eyed Vireo Chat 



Worm-eating Warbler Canadian Warbler 



Magnolia Warbler Olive-backed Thrush 



The third "wave" of the month usually takes place 

 between May 10th and May 14th. It is eagerly awaited by 

 the field student, as it is one of the two chief opportunities of 

 finding the rarer species. The following commonly arrive at 

 this time: 



(May 10-May 14) 



Nighthawk Cape May Warbler 



vX^obolink Bay-breasted Warbler 



V/White-crowned Sparrow Blackpoll Warbler 



Lincoln's Sparrow Wilson's Warbler 



Golden-winged Warbler Long-billed Marsh Wren 



Tennessee Warbler Gray-cheeked Thrush 



