AUGUST, 1915. NOTES ON SOUTH AMERICAN BIRDS CORY. 317 



Falco sparverius var. australis * Ridg., Proc. Acad. Nat. Sci. Phila. 

 1870, p. 149. 



Type locality: Province of Bahia, Brazil. 



Range: Brazil, ranging northward nearly or quite to the Amazon 

 River and Pernambuco (and Ceara?) ; intergrading with cinnamomina 

 in extreme southern Brazil (Rio Grande do Sul), Paraguay, and north- 

 eastern Argentina, and probably with peruviana on the eastern slope 

 of the Andes in Bolivia and eastern Peru. 



Characters: Adult male. General coloration and black spotting 

 of the under parts resembling cinnamomina, but under parts averaging 

 slightly more whitish and size smaller; inner web of outer rectrix nor- 

 mally black and white without rufous; subterminal black band on rec- 

 trices comparatively broad, averaging (in 20 males from Matto Grosso 

 and Bahia) 22 mm.; white spots on outer webs of outer primaries as in 

 cinnamomina. 



Wing, 175 to 185, average 180; tail, 122 to 133, average 127 mm. 



Adult female. Similar to cinnamomina, but smaller and black bars 

 on rectrices broader and more complete. 



Wing, 182 to 195, average 186; tail, 123 to 132; average, 129 mm. 



Comparative differences: Adult male. Differs from C. s. cinnamo- 

 mina in its smaller size; the tips of the rectrices normally white or 

 whitish (except the central pair which are usually grayish) ; subterminal 

 black band on rectrices broader (usually 20 mm. or more) ; inner web of 

 outer rectrix normally barred with black and white, without rufous; 

 under parts averaging whiter; tail relatively and actually shorter. 



Female differs from cinnamomina in its average smaller size and in 

 having the black bars on the rectrices wider and more complete, and 

 subterminal band wider. 



Male differs from C. s. peruviana in more whitish under parts; breast 

 paler (less tinged with ochraceous cinnamon rufous) ; sides and flanks 

 whiter (not noticeably tinged with pale ochraceous cinnamon); inner 

 web of outer rectrix normally black and white (not rufous as in 

 peruviana); crown averaging paler. Female differs from peruviana in 

 relatively shorter tail and average paler brown markings on under 

 parts. 



* Alternative name for F. gracilis Swainson (which was preoccupied) and there- 

 fore the type locality is Bahia, as given by Swainson. The fact that Ridgway later 

 (in Baird, Brewer and Ridgway, Hist. N. A. Bds, III, 1874, p. 166) described a bird 

 from Parana, Paraguay, as australis, and that a specimen in the U. S. National Mus- 

 eum collection (No. 20937) is labeled, "Type of Tinnunculus sparverius var. australis 

 Ridgw.," has no bearing on the case and does not change the original type locality. 

 Furthermore the Parana specimen is apparently an intergrade between cinnamomina 

 and australis, and in my opinion approaches somewhat nearer the former than the 

 latter. 



