LEUCOCHLORIS ALBICOLLIS. 7 



several angry rushes at me before the nest was touched, but as 

 soon as she saw that it was discovered became so shy that it was 

 difficult to secure her. The male was not seen at all. I once saw a 

 bird of this species attack and put to rout a wild dove which passed 

 near it while feeding, and though the dove made every effort to escape, 

 the Hummer not only kept up with it easily, but darted above and 

 below it as well, and finally both went out of sight in the distance 

 together." 



236. LEUCIPPUS CHIONOGASTER (Tsch.). 

 (WHITE-BREASTED HUMMING-BIRD.) 



Leucippus chionogaster, Scl. et Salv. Nomencl. p. 91 ; White, P. Z. S. 1882, 

 p. 616 (Catamarca) ; Elliot, Syn. Troch. p. 199; Gould, Mon. Troch. v. 

 pi. 290. 



Description. Head, upper surface, wing-coverts, and flanks bronzy green ; 

 throat and whole lower surface white ; wings purplish brown ; central tail- 

 feathers bronzy green, lateral dull bronzy brown on the outer webs ; inner webs 

 and shafts white, the inner webs clouded with bronzy brown in the centre ; bill 

 black, lower mandible paler at the base: whole length 4*2 inches, wing 2-1, 

 tail 1'3. Female similar. 



Hob. Peru, Bolivia, and Northern Argentina. 



White obtained examples of this species at Fuerte de Andalgala, in 

 Catamarca, in September 1880. They were feeding on the flowers 

 of the " Idiondilla," which is one of the " Humming-bird-plants " of 

 that district. " They are very swift and wild in their movements," he 

 tells us, and (f make a very loud hum/' louder iu fact than any other 

 species with which he was acquainted. 



237. LEUCOCHLORIS ALBICOLLIS (Vieill.). 

 (WHITE-THROATED HUMMING-BIRD.) 



Leucochloris albicollis, Gould, Mon. Troch. v. pi. 291; Elliot, Syn. Troch. 

 p. 200. Thaumatias albicollis, Burm. La-Plata Reise, ii. p. 448 (Tucu- 

 man). 



Description. Head, all the upper surface, wing-coverts, chin and sides of 

 the neck, abdomen and flanks deep shining grass-green ; on the centre of throat 

 and breast a large patch of white ; lower part of abdomen and under tail-coverts 

 white ; wings purplish brown ; two middle tail-feathers deep shining grass- 

 green, the remainder bluish black, the three outer ones tipped with white ; 

 upper mandible black ; basal two thirds of the lower mandible fleshy, apical 

 third brown ; feet brown : whole length 4-2 inches, wing 2-3, tail 1'4. Female 

 similar. 



