114 



Dimensions.— Average measurements of eight specimens : length, 

 6-53; stretch, lOGl; wing, 3-34; tail, 2-62; bill from nostril, -42; 

 culmen, '65; gape, -83; tarsus, '50; middle toe, -32; middle toe and 

 its claw, -48. 



110. Empidonax pusillus traillii (^mcZm6o?i). Traill's Fly- 

 catcher. A rather uncommon spring and fall migrant, and occasional 

 in summer; probably breeds. 



This active, noisy species is usually present during the latter part 

 of May (12 to 31, 1875; 22 to 28, 1876; 25, 1878; 13, 1880), and passes 

 south in autumn. Messrs. Roosevelt and Minot found it summering 

 in the Adirondacks, in Franlclin County, N. Y.^ Dr. Thomas M. 

 Brewer described its eggs (Proceedings of the United States National 

 Museum, p. 4, April 29, 1879) taken in Catskill mountains, N. Y., by 

 Dr. James C. Merrill. 



Dimensions. — Average measurements of three adult males : length, 

 6-09; stretch, 9-36; wing, 2-87; tail, 2-33; bill from nostril, -35; gape, 

 •70; tarsus, -GQ; middle toe and its claw, -58; toe alone, -42. 



111. Empidonax minimus (Baird). Least Flycatcher. A 

 very common summer resident; breeds. Reaches us from the South 

 about the beginning of May (15, 1874; 10, 1875; 8, 1876; 7, 1877; 2, 

 1878; April 29, 1879, 26, 1880), and departs during the last of Sep- 

 tember and first part of October (latest observation October 8, 1874). 



Dimensions. — Average measurements of tvrelve specimens : length, 

 5-41; stretch, 8-15; wing, 2-51; tail, 2-21; bill from nostril, -31; gape, 

 •65; tarsus, -65; middle toe and its claw, -49; toe alone, '32. 



112. Empidonax flaviventris (JBaird)- Yellows-bellied Fly- 

 catcher. A common spring and fall migrant. Arrives early in May, 

 and passes on before June (May 9, 1873; 31, 1875; 23 to 28, 1876; 

 17, 1877; 22, 1878; 14, 1879; 13, 1880). In autumn, passes south dur- 

 ing September (latest observation September 28, 1875). 



Dimensions. — Average measurements of seven specimens: length, 

 5-63; stretch, 8-70; wing, 265; tail, 216; tarsus, -59. 



Family, CAPRIMULGIDiE. 



113. Caprimulgus vociferus (Wilsoji). Whippoorwill. A 

 very common summer resident; breeds. Reaches us from the South 

 about the beginning of May (April 23, 1872; May 6, 1873; 12, 1874; 

 10, 1875; 11, 1876; April 27, 1877; 24, 1878; May 4, 1879; April 22, 

 1880), and departs during !Septeml)er. My latest date is September 

 30, 1875, when I procured a female specimen. In 1878, its notes 

 were heard during September, as late as the 23d. Its cry is not as 



3 The Summer Birds of the Adirondacks, in Franklin County, N. Y.,No. '"61," 



1877. 



