270 DWIGHT 



chin. The adult nuptial plumage is, in extreme examples, hardly 

 distinguishable from the male, but usually the black is much 

 restricted and the chin yellow, merely spotted with black. 



Dendroica vigorsii (Aud.). Pine Warbler 



1. Natal Down. Sepia-brown. 



2. Juvenal Plumage acquired by a complete postnatal moult. 



Above, drab, shading to hair-brown. Wings and tail deep olive-brown the sec- 

 ondaries and rectrices with greenish gray edgings, the tertiaries and wing co- 

 verts edged with drab ; two dull white wing bands. Below, olive-gray washed 

 with drab on the throat and sides and indistinctly mottled with deeper gray. 

 Orbital ring white. Bill and feet dusky pinkish buff becoming black. 



3. First Winter Plumage acquired by a partial postju venal 



moult, beginning late in July, which involv^es the body plumage 



and wing coverts but not the rest of the wings nor the tail, young 



and old becoming practically indistinguishable. 



Entirely different from the previous plumage. Above bright olive-green veiled 

 with drab-gray edgings, the upper tail coverts grayer. Wing coverts black, 

 edged with greenish olive-gray ; two white wing bands. Below, including 

 superciliary stripe and orbital ring bright lemon-yellow, fading to dull white on 

 abdomen and crissum, veiled with whitish edgings, the flanks washed with drab- 

 gray, a few concealed dusky streaks on the sides of the breast. Lores and post- 

 ocular spot dusky. 



4. First Nuptial Plumage acquired by wear which is ex- 

 cessive, birds becoming greener above and a greener yellow 

 below by loss of the edgings, the breast .streaks being also ex- 

 posed. 



5. Adult Winter Plumage acquired by a complete postnup- 

 tial moult in July and August. Practically indistinguishable 

 from first winter dress, but usually yellower, the streaking more 

 abundant, the veiling diminished above, the wings and tail darker 

 on an average and the edgings darker and grayer. 



6. Adult Nuptial Plumage acquired by wear as in the 

 young bird. 



Female. — The plumages and moults correspond to those of 

 the male from which the female is first distinguishable in first 

 winter plumage which is much browner than that of the male. 



