278 DWIGHT 



and superciliary stripes. Young and old become indistinguish- 

 able. 



5. ADULT WINTER PLUMAGE acquired by a complete postnup- 

 tial moult in July. Differs from first winter in the crown being 

 grayer, the black areas more defined and the edgings clear 

 plumbeous gray, veiling the black much less. 



6. ADULT NUPTIAL PLUMAGE acquired apparently by a par- 

 tial prenuptial moult, as in the young bird, although wear alone 

 may modify the winter plumage after the first year. The ma- 

 terial I have examined is not conclusive upon this point. 



Female. In first winter and later plumages the female differs 

 chiefly from the male in the black markings being duller and re- 

 stricted. 



Geothlypis agilis (Wils.). CONNECTICUT WARBLER 



1. NATAL DOWN. No specimen seen. 



2. JUVENAL PLUMAGE acquired by a complete postnatal moult 

 in all probability. Birds in this plumage have never been ob- 

 tained, so far as I know, supposed ones proving to be something 

 else. We may expect a bird most resembling G. Philadelphia, 

 uniformly brownish above and yellowish below, the throat and 

 chin perhaps as dark as the back, and no streaks. 



3. FIRST WINTER PLUMAGE acquired by a partial postjuvenal 

 moult which apparently involves the body plumage and the wing 

 coverts and not the rest of the wings nor the tail. 



Above, including wings and tail, brownish olive-green almost exactly like G. trichas, 

 but usually greener and grayer. Below, unlike G. trichas, being canary-yel- 

 low, washed on the sides with pale olive-brown, and with broccoli-brown on 

 the throat often concealing cinereous gray, the chin wood-brown. The orbital 

 ring conspicuously pale buff. 



4. FIRST NUPTIAL PLUMAGE acquired by a partial prenuptial 

 moult involving much of the head and throat, which become 

 clear plumbeous or ashy gray instead of brown, slightly veiled 

 with olive-brown on the pileum and with drab-gray on the throat, 

 the orbital ring white. 



