258 NORTH A.NtEIUCAX IJIKDS. 



Dendroica olivacea, Si i at. 



OLIVE-HEADED WABBLEB. 



Sijlrki (ilimcro, (iin.M-D, Hinls Texas, ISH, 11, [il. vii, W'^. % — Sci.ATF.Il, P. Z. S. ISrir), 

 ()(). .Sif/i-ifii/d (,/it-(imi, Cassin, 111. Hiids Texas, ete. 18;").'), 2S;i, 1)1. xlviii. llhimnm- 

 /i/iiis (j/iviici'Ks, Sci.ATKli, 1'. /,. ,S. !{*")(). lilH (('c)i(li)va). Ihiiilntieti olimcai, .Scl.Ali'.ii, 

 1'. Z. K. 18J8, '2H8 (Oa.xaeii ; eokl rej,'i(iii). - Id. P. 'A. S. IH.VJ, ;ili;i (.lalupa). — In. 

 ratal. 1861, 31, no. 190. — Baikd, liev. .\iii. U. I«il4, -.iit.'). .syc/u hcniatn, Drnrs, 

 Hull, .\eail. iiiiix. XIV, 1847, Idl. - In. liev. Z. 18-18, -2-15. Ni/h-iivla heiiUiUi, Bon. 

 Con.si). l><r)(i, adi). 



8p. f'lfAU. Ilcail anil iicrk all roiiiid, with jii.iiiiluiii, lirowiiish-sallVon, with ii li'i-ounish 

 tin.iri' oil llii' iiaiic. licsi of u|i|)ci- pails a.shy. Middle and tips of groatoi- wing- covorts 

 white, foriiiiiig two haiid.s on the wing-; a thifd white patch at tlu' ba.SL'.s of the priiiiafies 

 (except the outer two), and cxlendiiif,^ Ibfwards aloii^' the outer edyc.s. Secondaries oiljjcd 

 externally with olive-jrieen. Iiniei- webs of rpiilLs con.spienoii.sly ed.u'ed with white. I'nder 

 parts, except a.s de.seiihed, while, tiiifred with Ijfownisli on tlu; sid<'s ; a narrow liontal 

 band, and a broad .stripe from thi.s thrciijrh eye and over ear-eoverl.s, black. Outer tail- 

 feather wl'.ite, exce))! at ba.s(! and towards ti]); frrealer portion of inner web of iie.xt 

 feather also white, nuieh more restriete<l on the third. Leiifith, 4.(iO ; wine-, 2.SS ; tail, 

 2.15 ; tarsu.s. .7"). 



A temale .specimen (14,.'!(;il). perliap.s also in antiimiial plnini!,:,'e, has the .sall'ron n'placed 

 by clear yellowish, except on the loj) of head and nape, which are olive-green. The black- 

 frontal and lateral baiid.s are replaced by whitish, leaving only a dusky patch c-i the ears. 



Hah. Mexico (both coasts to the .southward) ; (iiiateiiiala. 



Tliis S])ecie.s i.s <ri\ou by Mr. (liraiid as occui'vino- in Texa.s, but it h pos- 

 sible that ho may have been luislod a.s to the true locality. It may, how- 

 ever, be yet detected along tlie southern border of the I'nited States. 



Nothiii" is known of its liidiits. 



Dendroica nigrescens, \\.\\\w. 



BLACK-THBOATED OBAT WABBLEB. 



Sijlcia nigresaum, Towssuxii, ,1. A. N. Se. VII, ii, 1837, 1!>1 (Columbia Hiver). — Acn, 

 Om. Biog. V, 18:3!t, ,07, pi. cecxcv. Fermivorn in';/. Box. ; NuiT. .Si/hncnJn vi<j. 

 Aui). Birds Am. II, pi. xiiv. lihlimiiiphiix niij. Caii. 1850. Ikvih-aim iiiij. Baiiii), 

 Bird.s N. Am. 18r)8, '2711 ; Bev. 18(i. -- Sil.ArKi!, P. Z. S. 1808, •2!»8 ; 18.09, 374 (Oax- 



aea : Ingli mountains in JIarch). llr.Kii.MANN, P. B. Ii. Beji. X, iv, 4ii. — <'ooi'i;i! k 



SiCKi.r.v, P. H. \{. I!ep. XII, 11, Isr.H, ISO. CoofKll, Orn. Cal. I, 1870, !tO. ! Sylvia 

 hiilscli, (JiiiAii), Birds Texa-s, 1838, \\\. iii, lig. 1, 9 (suggested by Selatcr). 



Sp. ("iiAii. Head all round, Ibrepart of the breast, and streaks on the side of the body, 

 black : rest of under parts, a stripe on the side of the head, beginning acutely just aln)ve the 

 middle of the <'ye, and another paralh'l to it, beginning at the base of the nmh'r jaw (the 

 .xtripes of opposite siiii's conlhien; on the chin), and running further back, white. A yellow 

 spot in front of the eyi'. Itest of upper parts blnish-gray. The interscapular region and upper 

 tail-coverts streaked with blai-k. Wing-coverts black, with two narrow white bamls; (piills 

 and tail-feathers brown, the two outer of tlu! latter white. M-itli the shafts and a terniiiial 



