BIBDS OBSEKVED AT WASHINGTON, D. C. 35 



Pintail. Winter Visitant, October to April. 



Mallard. Common Winter Visitant. 



Green- winged Teal. Common Winter Visitant, September 

 to April. 



Blue-winged Teal. Common Winter Visitant, September 

 to April. 



Canada Goose. Winter Visitant, and rather common 

 Transient Visitant, October to April. 



Great Blue Heron. Rather common, absent only in mid- 

 winter. 



Little Green Heron. Very common Summer Resident, 

 April 15 to September. 



American Bittern. Not uncommon Summer Resident ; 

 occasional in winter. 



Sora. Common Transient Visitant, March ; July to No- 

 vember. 



Clapper Rail. Accidental; one record. 



American Coot. Common Transient Visitant, March to 

 May ; September to October 15. 



Woodcock. Rather common from February to November ; 

 a few winter. 



Spotted Sandpiper. Common Transient Visitant ; not com- 

 mon Summer Resident, April 5 to September 30. 



Wilson's Snipe. Common Transient Visitant, March to 

 May ; September to November ; occasional in winter. 



Semipalmated Sandpiper. Rare Transient Visitant, May ; 

 August to October. 



Killdeer. Permanent Resident, most abundant in migra- 

 tions. 



Semipalmated Plover. Casual, three specimens, May ; Au- 

 gust. 



Bob- white. Common Permanent Resident. 



Ruffed Grouse. Not common Permanent Resident. 



Mourning Dove. Permanent Resident, common except in 

 winter. 



Turkey Vulture. Abundant Permanent Resident. 



Red-shouldered Hawk. Common Permanent Resident. 



Red-tailed Hawk. Common Winter Visitant; rare Sum- 

 mer Resident. 



