4. EnYNcnoTTJS. 549 



G. Kerr, Ibis, 1892, p. 151 (Lower Pilcomayo) ; Holland, t. c. p. 214 

 (Argentine) ; Allen, Bull. Amer. Mns. N. H. v. pp. 151, 158 (Matto 

 Grosso,eo;g) (1893) ; Aplin, Ibis, 1894, p. 212; Blaauw, Bull. Brit. 

 Orn. Club, no. xxviii. p. xlii (breeding at 'sGraveland) (1895). 



Notliurus rufescens, Sw. Class. B. ii. p. 345 (1837). 



Rhvnchdtis rufe.scens, Rchnb. Syn. Av., Gallinacere, t. 287. S. 1579- 

 . 80 (1848) : Barfl P. Z. S. 1867, p. 687 (breeding), 1868, p. 114, 

 pi. xii. f. 1 (chick), f. 2 (egg) ; Ed. Ibis, 1873, p. 131 (note) ; 

 Sorbij, P. Z. S. 1875, jjp. 357, 361 (egg) ; Durnf. Ibis, 1876, p. 166 

 (Argentine) ; Withinjjton, Ibis, 1888, p. 473 (Lomas de Zamora) ; 

 Sclat. ibid. ; id. Ibis, 1894_, p. 453. 



Rhynchotes rufescens, Mairet, Btdl. Soc. Acclim. 1871, p. 594 

 (breeding in confinement). 



Adult. Head, neck, and breast rufous, upper part of the head 

 black, the feathers more or less edged with rufous ; a dusky narrow 

 stripe from the corner of the mouth to the ear-coverts ; throat pale 

 rufous, nearly white ; back, rump, upper tail-coverts, and upper 

 wing-coverts pale greyish brown, with broadish black bars and 

 others narrower, whitish ; lower flanks and abdomen greyish, with 

 brown and whitish bars, the latter somewhat narrower ; bastard- 

 wing, primary-coverts, and quills uniform bright cinnamon-rufous ; 

 tertials greyish, barred with brown and buff ; under wing-coverts 

 uniform rufous ; tail grey, with black and whitish bars, the latter 

 much narrower. Total length 14-17 inches, wing 8-9, tail 2-5- 

 2-75, culmen l'G-l*7, tarsus 2"3-2'5. 



Female. Similar, but larger. 



Younr/ in down. Head and neck rufescent, with longitudinal 

 black stripes ; sides of the head and throat white ; upper parts 

 striped with white and black ; lower parts white. 



It seems that there are three or four sufficiently distinct races : — 



1st. A Southern one from the Argentine llepublic : very little 

 rufous on the neck and not at all on the breast ; the black bars 

 much broader and quite distinct on the flanks. The Ijirds from 

 Uruguay are similar but more rufous on ttie neck. 



2nd. A Southern Brazilian race, has the neck decidedly rufous, 

 and this colour covers also the upper part of the breast ; the black 

 bars, especially in the Matto Grosso birds, are much narrower. 



3rd. A Bahia race, similar to the second, but with no black bars 

 whatever on the flanks ; also «n the under tail-coverts and tail- 

 feathers there is scarcely a trace of them, while the whitish bars 

 are present. 



Hah. Argentine Hepublic, Uruguay, Paraguay, Bolivia (?), and 

 Brazil, as far north as Bahia. 



a, b, c. Ad. St. Brazil. Lord Stuart de Roth- 



et sk. say [P.]. 



d. Ad. sk. Interior of Bolivia (? !) Eyton Coll. 



(Bridf/es). 



e,f. S 2 ^^- *k. Near Paysandu, Uruguay, Alan Peel, Esq. [P.]. 



Aug. 



ff. Ad. st. Maldonado. Sir W. Burnett & 



Capt. Fitzroy [P.], 



