200 DWIGHT 



Resembles S. socialis, but the crown practically unstreaked and the streaking below 

 duller and restricted to throat and sides ; the loral and postocular streaks are 

 lacking, the wing edgings are richer and deeper ; and the lower parts are 

 washed with pale buft^ or brown. The orbital ring is not conspicuous. The 

 upper mandible is usually paler than in S. socialis. 



3. First Winter Plumage acquired by a partial postjuvenal 

 moult, beginning early in September, which involves the body 

 plumage, and the wing coverts but not usually the rest of the 

 wings nor the tail, although the middle pair of rectrices is oc- 

 casionally renewed. Old and young becoming practically indis- 

 tinguishable. 



Above, including auriculars, walnut-brown, a faint grayish median crown stripe, 

 the back streaked with black, the edgings bufif or pale cinnamon ; rump hair- 

 brown. Orbital region and sides of neck ashy, the orbital ring conspicuously 

 buff. Below dull white, jugular band and sides washed with pale cinnamon. 



4. First Nuptial Plumage acquired by wear. All the 

 cinnamon below is lost except a faint pectoral band, the sides of 

 the head and neck become clear ashy, and the upper parts 

 bright hazel with whitish edgings on the back, the wing bands 

 white. There is some renewal of feathers on the chin in April 

 but apparently not enough to desen-e the name of a moult. 



5. Adult Winter Plumage acquired by a complete post- 

 nuptial moult beginning late in August. Practically indistin- 

 guishable from first winter. 



6. Adult Nuptial Plumage acquired by wear as in the 

 young bird. 



Female. — The plumages and moults correspond to those of 

 the male, the sexes being practically indistinguishable. 



Junco hyemalis (Linn.). Slate-colored Junco 



1. Natal Down. Slate-gray. 



2. Juvenal Plumage acquired by a complete postnatal moult. 



Above, drab, plumbeous on crown ; sides of head and nape streaked with dull black, 

 the feathers especially of the back edged with bistre. Wings and tail slaty 

 black edged with olive-gray, the tertiaries and wing coverts with dull cinnamon, 

 the greater coverts tipped with buff. Two outer rectrices pure white. Feet 

 pinkish buff, dusky when older. Bill dusky pinkish buff, flesh-color when older 

 and in dried specimens becoming dull ochre-yellow. 



