106 ORNITHOLOGICAL EXPLORATIONS. 



1826. — Chararlrius mongoUcns Pall., Zoogr. Ross. Ass., II,p. 136. — Midd., Sibir. Reise, 

 11,2 (p.211,taf. xix,li,<rs.2,3).— ScHREXCK, Reis. AinnrL, p. 411 (1860)-— 

 Radde, Reis. Slid. Ost-Sibir., II (p. 324) (1863).— Przew., Pntestb. Ussnr. 

 (n. 153), (l<-<70) — FixscH, Verb. Zool. Bot. Ges. VVien, 1873, extr., p. 18.— 

 JEgialHis m. SwLXH , P. Z. S., 1H63, p. 310.— 7rf., ibid., 1870, p. 140.— Id., ibid., 

 1871, p. 404.— M, Ibis, 1870, p. 360.— Hahtixg, Ibis, 1870, p.384.— Z(Z., P. Z. 

 S., 1871, p. 110.— Pklz., Verb. Zool. Bot. Ver. Wieii, 1873, extr., p. 6.— Seeb., 

 Ibis, 1879, p. 25.— Blakist. & Pryer, Tr. As. Soc. Jap., VIII, 1880, p. 192.— 

 Id., ibid., X, 1882, p. 108.— Nelson, Cruise Corwiu,p. 85 (1883).— Blaklst., 

 Amend. List B.Jap., p. 10 (l88A).—Eudromias m. Taczan., Bull. Soc. Zool. 

 France, 1876, p. 248.— Id., ibid., 1882, p. 397.— Id., ibid., 1882, p. 397.— Id., Orn. 

 Faun. Vost. Sibir., p. 52 (1877).— Ste.tneger, Pr. U. S. Nat. Mus., 1883, p. 

 71.— Id., Naturen,1884, p. 51.— BOGDAN., Cousp. Av. Ross., I, p. 73 (1884). 



1878, —JEgialitis rnficapiUa ? Blakist. & Prver, Ibis, 1878, p. 219 {nee Temm.).— Seeb., 

 Ibis, 1879, p. 25. 



Description.— <? art. Breeding phmage (U. S. N. M., No. 89051 ; L. Stejneger, No. 1041. 

 Bering Island, May 11, 188:^). 



Forebead white.dividedby a black line wbicb, comnieuciug from tbeculmen, borders 

 tbe wbite frontlet above, then descends in front of the eye, uniting -with the broad 

 black loral stripe, which extends backwards under the eye, and occupies the ear- 

 coverts; from the bind part of these a very narrow blackish line descends on the 

 lower neck, uniting with the corresponding line from the other side, encircling the 

 white chin and throat which, thus, on all sides are bordered with blackish ; fore part 

 of crown and a stripe over the eyes, behind communicating with the neck-ring, pale 

 rnious; hind part of crown and nape brownish gray separated from the same color of 

 the back by a rather narrow ring of a bright cinnamon rufous, which widens ante- 

 riorly so as to embrace the whole juglum and fore breast; shoulders and back brown- 

 ish "ray, with a just perceptible silky gloss of olive, fading into a lighter shade on the 

 rump; wing-coverts andtertials of the same color; ilanks brownish gray, with broad 

 wliite edgiugs, remaining under plumage white, except tibine which are strongly 

 tinged with rufous. Primaries blackish brown, fading into brownish gray on the in- 

 ner ones, from the seventh with a mesial white spot in the outer web ; shaft of the 

 first primary white, those of the others only mesially so; large coverts, with white 

 tips, forming a cross-bar. Tail-feathers dark brownish gray, this color fading grad- 

 ually on the lateral ones ; the outermost on each side white, with a wedge-shaped 

 gray spot in the inner web near the tip ; tips of all the rectrices, except the middle 

 pair, edged with while. 



For colors of naked parts and for dimensions, see "list of specimens 

 collected." 



A few of the white feathers of the forehead are slightly tipped with 

 black. It seems as if the whole forehead had been black, the black edg- 

 ings of the feathers having been worn away. This would account for 

 the great variation of the extent of the white and black of the forehead 

 in these birds, and such an assumption is supported by the fact that a 

 specimen from Japan killed in April has almost the whole forehead black, 

 while this color is still more reduced in specimens killed later than that 

 described above. It is at least quite certain that the black forehead 

 does not indicate the full summer plumage. The two other males of 

 my collection differ from the nbove oidy in being a little less brightly 



