V 



SYLVICOLID^, WARBLERS. GEN. 36. 105 



markings whatever, except the superciliary line ; and by the combination of 



white wing-bars with large oblique tail-spots confined to the two outer pairs 



of feathers. One of the largest species : 5J to nearly 6. Eastern United 



States, very abundant in pine woods and cedar thickets ; has an extensive 



breeding range, and is apparently resident in southern portions. Vireo 



vigorsii Nutt., i, 318 ; S. pinus WiLS., iii, 25, pi. 19, f. 4 ; Nutt., i, 387 ; 



AuD., ii, 371, pi. 82; Bd., 277 pinus. 



Obs. The two following species, ascribed to North America, are not now 

 known : — 



Blue Mountain Warbler. Sylvia Montana Wils., v, 113, pi. 44, f. 2 (Blue 

 Mountains of Virginia). Aud., ii, 69, pi. 98 (" California"). Bd., 278. Professor 

 Baird suggests that some plumage of D. pinus or striata may furnish the clue to 

 this lost species ; but these are among the largest warblers, whilst Wilson says 

 " length four inches and three-quarters." Mr. Turnbull (Birds of New Jersey, p. 

 18) says, without qualification, it is the young of D. ccerulea. I think myself that 

 it is simply the young of D. virens ! of which, it seems, Wilson never recognized 

 an autumnal example. A September specimen of virens, before me as I write, 

 agrees almost precisely with Wilson's description — rich yellow olive ; front, cheeks, 

 chin and sides of neck, yellow ; * * two exterior tail feathers white on the 

 inner vanes from the middle to the tip, and edged on the outer side with white, etc. 

 Now D. virens is the only Eastern species, showing this latter feature, that agrees 

 with the other assigned characters at all. It is curious additional evidence that I 

 am right in this surmise, that the original of Audubon's figure, in the British 

 Museum, came from "California;" for I suppose that this specimen was the 

 young of occidentalis or townsendii, some of the plumages of which, as well as can 

 be made out, are with difficulty distinguishable from immature virens. 



Carbonated Warbler. Sylvia cakbonata Aud. Orn. Biog. i, 308, pi. 60 ; Nutt., 

 i, 405 ; Aud., ii, 95, pi. 109 ; Bd., 287. Only known by the figure and description 

 of a pair killed in Kentucky. I have no idea what this is ; it may not be a 

 Dendrceca at all. Audubon himself put it among the worm-eating warblers. 



36. Genus SEIUEUS Swainson. 



*#* The birds of this genus have been classed with the thrushes, and also with 

 the titlarks (which they somewhat resemble in habits, being walking birds) , but 

 they have no special affinity with either. They are simply terrestrial warblers, 

 closely related to gen. 37, 38. Five species are 

 enumerated, but the exotic representatives of nove- 

 horacensis and liidovicianus seem to be mere vari- 

 eties. 



* Crown orange-brown, with two black stripes ; no 

 superciliary line. 



c*;' Golden-croivned Thrush. Oven Bird. Bright 

 olive green ; below pure white, thickly spotted 

 with dusky on breast and along sides ; a narrow 



maxillary line of blackish ; under wing coverts ^ig. «. Gowen-crowned Thmsh. 

 tinged with yellow; a white eye-ring; legs flesh color; wings and tail 

 unmarked. Sexes alike ; young similar. Length 5J-6^ ; wino- 3 ; tail 2^. 



KEY TO N. A. BIRDS. 14 



