GREEN, GREENISH GRAY, AND OLIVE 433 



semble one closely. In fact, unless the bird be seen to fly 

 off the nest or to it, the discovery of one of these dainty 

 homes is almost impossible. One nest, now in the col- 

 lection of Mr. William Brewster, at Cambridge, Mass., 

 is composed of tine moss and willow down, decorated 

 with tiny shreds of bark, flakes of wood, and flakes of 

 whitew^ash fastened securely with cobwebs ; it was placed 

 on a knot in a rope hanging from the roof of a wood- 

 shed. The construction and materials mimicked the 

 rope and knot on wliich it was placed. Mr. Bryant 

 records another, built on a projecting splinter of a wood- 

 pile at a height of two feet. Here, as seemingly under 

 all circumstances, the bird had tried to imitate the sur- 

 roundings, and to so place its home that it would be 

 more or less protected by an overhanging branch, leaf, 

 or some other object. 



459. 0LIM:-SIDKD VL\CATCHKR. — \„tla//onns 

 horcalis. 



Family : The Flycntchers. 



Levgth: 7.10-7.90. 



Adults: Upper parts dark-brownish slate, with darker shaft streaks on 



some of the fcatliers ; conspicuous tuft of white cottony feathers 



on each side of rump (generally concealed by wings) ; under i)arts 



white through the middle from chin to crissum ; the sides dark and 



somewhat streaked. 

 Young: Like adults, but wing-coverts tipped with brownish instead of 



white. 

 Ocof/raphical Distribution: Through the njountainous regions of North 



America west of Rocky Mountaijis to Pacilic Coast ; north to Hudson 



Bay; south in winter as far as Ptiii. 

 Cali/nrnin lirccdimj Range: In Transition and lower Boreal zones 



throughout the State. 

 Breeding Season: June 1 to August 1. 



28 



