80 



Dimensions. Average measurements of eight specimens : length, 

 6-53; stretch, 10-61; wing, 3-34; tail, 2-62; bill from nostril, -42; 

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

 its claw, -48. 



110. Empidonax pusillus traillii (Audubon). TR\ILL'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 iu autumn. Messrs. Roosevelt and Minot found it summering 

 in the Adirondacks, in Franklin County, N. Y. 3 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, '66 ; middle toe and its claw, -58 ; toe alone, -42. 



111. Bmpidonax 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 twelve 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 (Baird}. YELLOW-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, 

 6-63; stretch, 8-70; wing, 2-65; tail, 2 16; tarsus, '59. 



Family, CAPRIMULGIDJB. 



113. Caprimulgus vocifems (Wilson). WIIIPPOORWILL. 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, 1>76; April 27, 1877; 24, 1878; May 4, 1879; April 22, 

 1880), and departs during Sep mber. 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. 



