24 Proceedings of the Biological Society of Washington, 



Species. 



Y'; a T Earliest -late *K5? Latest date 



dateof of spring !} dt( \ \ of the last 



*» n "~ arrival Ul " Uisl one seen, 



arrival. one seen. 



Black-throated Green Warbler . . April 



Kingbird 



Northern Water-Thrush .... 

 Great-crested Flycatcher. . . . 



Chat 



Hooded Warbler 



scarlet Tanager 



Indigo Bunting 



Warbling Vireo 



Wilson Thrush 



Marsh Wren 



Cliff Swallow 



Hummingbird 



Black-throated Blue Warbler . . 



Summer Tanager 



Leasl Flycatcher 



Worm-eating Warbler 



Orchard Oriole 



Baltimore Oriole 



Bobolink 



Chestnut-sided Warbler . ■ 



Nighthawk 



Golden-winged Warbler 



Kentucky Warbler 



Blackburn ian Warbler 



Nashville Warbler 



Rose-breasted Grosbeak .... 



Olive-backed Thrush 



Blue-winged Warbler 



Wood Pewee 



Blue Grosbeak 



Black-poll Warbler 



Magnolia Warbler 



Acadian Flycatcher 



< a pe May Warbler 



Canadian Warbler 



April -2-2, 

 April 18, 

 April 22, 

 April -JO, 

 April 16, 

 April 19, 

 April 17, 

 April 25, 

 April 21, 

 April 'Jt;, 

 April 15, 

 April 10, 

 April 16, 

 April 19, 

 April 18, 

 April 20, 

 April 25, 

 April 25, 

 April 24, 

 April 26, 

 April 19, 

 April 19, 

 April 30, 

 April 29, 

 April 30, 

 April 29, 

 May 1. 

 April 19, 

 April 26, 

 April 29, 

 May 1 , 

 April 28, 

 April 22. 

 April 29, 

 May 1. 

 May ::. 



1905 

 1896 

 1894 

 1896 

 1876 

 1S96 

 1896 

 190S 

 1895 

 1890 

 1896 

 1887 

 1912 

 1896 

 1896 

 1881 

 1908 

 l'.ios 

 1912 

 1896 

 1902 

 1891 

 1910 

 1906 

 1905 

 1885 

 1007 

 1896 

 1891 

 1900 

 1878 

 1 StiO 

 1891 

 1845 

 1893 

 1908 



May 10 



Breeds 



May 25 



Breeds 



Breeds 



Breeds 



Breeds 



Breeds 



Breeds 



May 18 



Breeds 



May 13 



Breeds 



May 20 



Breeds 



May 15 



Breeds 



Breeds 



Breeds 

 May 20 

 May 24 

 Ma j 24 

 May 15 

 1 heeds 

 May 21 

 May 15 

 May 16 

 May 22 

 May 22 

 Breeds 

 Breeds 

 .June 1 

 May 25 

 Breeds 

 May 10 

 May 24 



May 30, 1907 



.bine 2, 1007 



June 2, 1007 



June 7. 1S7, 



May 30, 188S 



May 20, tool 



May 30, 1877 

 May 30, 1891 

 Bare, sum'r 

 Bare, sum'r 



June 3, 1907 

 May 19, 1887 

 May 30, 1907 



June •_', 10(i7 

 Bare, sum'r 



June 10. 10(17 

 May 31, 1909 



May 20, 1882 



June 2, 10(i7 



