THE NESTING SEASON. 



19 



Date of departure. 



Oct. 10-20. Long-billed Marsh Wren 



Short-billed Marsh Wren 



House Wren 



Brown Thrasher 



Catbird 



October 20-31. Phoebe 



Towhee 



Tree Swallow 



November 1-30.* Woodcock .- 



Mourning Dove 



Kingfisher 



Ked- winged Blackbird 



Purple Grackle 



Cowbird 



Vesper Sparrow 



Field Sparrow 



Chipping Sparrow 



Swamp Sparrow 



DATES AT WHICH BIRDS BEGIN TO NEST IN THE VICINITY OF 



NEW YORK CITY.t 



Feb. 28. Great Horned Owl. May 2. Osprey. 



Mar. 12. Barred Owl. 3. Cardinal. 



28. Carolina Wren. . 5. Cowbird. [In Song Spar- 



30. Duck Hawk. row's nest-X 



April 1. Woodcock. 6. Wood Duck. 



3. Eed-shouldered Hawk. 6. Green Heron. 



3. Screech Owl. 7. Flicker. 



6. Ked-tailed Hawk. 8. Barn Swallow. 



9. American Crow. 10. Clapper Kail. 



9. Long-eared Owl. 10. Killdeer. 



10. Bluebird. 10. Ruffed Grouse. 



17. White-breasted Nuthatch. 10. Sparrow Hawk. 



18. Broad-winged Hawk. 10. Savanna Sparrow. 

 20. Robin. 10. Vesper Sparrow. 



25. Mourning Dove. 11. Louisiana Water-Thrush. 



25. Purple Grackle. 12. Ruby-throated Hummingbird. 



28. Phffibe. 13. Red-headed Woodpecker. 



29. Song Sparrow. li. Acadian Flycatcher. 

 May 1. Black-crowned Night Heron. 14. Blue Jay. 



1. Cooper's Hawk. 14. Chipping Sparrow. 



1. Kingfisher. 14. Towhee. 



* Should the season be an exceptionally mild one, many of these birds may 

 remain until late in December. 



t Based on data accompanying the oologlcal collections of the American 

 Museum, and on the observations of Prof. Marston T. Bogert, Dr. J. Dwight, Jr., 

 Dr. Evan M. Evans, Mr. W. P. Lemmon, and the author. The dates given are 

 those on which, with some exceptions, full sets of eggs liave been talcen. 



