DISTRIBUTION AND MIGRATION. 



33 



An average of the dates thus obtained during the past six years 

 gives us the following spring migration schedule of the commoner 

 species for the vicinity of Philadelphia, and it is not probable that 

 Xew Jersey dates vary from these more than a day or two, even in the 

 extreme northern and southern sections of the State. 



March 2. Bluebird. 



3. Purple Grackle. 



4. Robin. 



8. Fox Sparrow. 

 Meadow Lark. 

 10. Red-winged Blackbird. 



13. Flicker. 



14. Killdeer. 



19. Field Sparrow. 



21. Phoebe. 

 25. Cowbird. 



29. Chipping Sparrow. 



30. Vesper Sparrow. 



April 10. Yellow-bellied Sapsucker. 



12. Ruby-crowned Kinglet. 



13. Hermit Thrush. 



17. Yellow Palm Warbler. 

 19. Towhee. 



Bank Swallow. 



Rough-winged Swallow. 



22. Tree Swallow. 

 Chimney Swift. 



23. Barn Swallow. 



24. Myrtle Warbler. 

 Brown Thrasher. 



25. Spotted Sandpiper. 



26. Black ana White War- 



bler. 



27. House Wren. 



28. Grasshopper Sparrow. 

 Maryland Yellow-throat. 



29. Solitary Vireo. 

 Catbird. 



30. Yellow Warbler. 

 Ovenbird. 

 Wood Thrush. 



May 2. Veery. 



3. Yellow-throated Vireo. 

 White-eyed Vireo. 

 Water Thrush, 

 liedstart. 

 Black-throated Green 



Warbler. 



4. Kingbird. 

 Great-crested Flycatcher. 

 Parula Warbler. 

 Black-throated Blue 



Warbler. 



5. Baltimore Oriole. 

 Orchard Oriole. 

 Yellow-breasted Chat. 



6. Rose-breasted Grosbeak. 

 Scarlet Tanager. 

 Red-eyed Vireo. 

 Warbling Vireo. 

 Blue-winged Warbler. 

 Chestnut-sided Warbler. 

 Kentucky Warbler. 



7. Indigo Bunting. 

 Magnolia Warbler. 

 Olive-backed Thrush. 



8. Bobolink. 



9. Yellow-billed Cuckoo. 

 Hummingbird. 

 Wood Pewee. 

 Worm-eating Warbler. 



10. Blackburnian Warbler. 



11. Black-billed Cuckoo. 

 Nighthawk. 

 Black-poll Warbler. 



12. Canada Warbler. 

 Gray-cheeked Thrush. 



