BIRDS OF NELSON COUNTY. 35 



late as October lOth. As its name indicates this fly- 

 catcher is exclusively a woodland bird, and builds the 

 handsomest nest of any eastern rapresentative of its fam- 

 ily, but it is a very difficult one to find. 



Genus Empidonax. 



112. Empidonax flaviventris Baird. Yellow-bellied Fly- 



catcher. 

 Transient. Rather uncommon. 



113. *Empidonsix acadicus (VmiLL.). Acadian Fly-catcher. 

 A common summer resident ; arrives about May 1st. 

 Fresh eggs found May 20th. Their nests are quite strong, 

 but are so slightly built that the eggs can be easily seen 

 by anyone standing beneath them. 



114. Empidonax minimus Baird. Least Fly-catcher. 

 Transient in April and May. Common. An inhabitant 

 of orchards and open places, in preference to the wood- 

 land. 



Order PICAEI-ffi : Picarian Birds. 



Suborder CYPSELIFORMES. 



Family TROCHILID.S: : Humming Birds. 



Genus Trochilus. 



115. *TrocbiIus coiuW^ Linn. Ruby-throated Humming 



Bird. 



A common summer resident ; arrives about April 25th. 



On account of the differences of plumage between the 



male and female Ruby-throat, it is popularly believed 



that we have two species of humming birds, but out 



