3. TACHYCINETA. 117 



Mas. PhUad. Acad. p. 5 (1853) ; Sclater, Cat. Amer. B. p. 40 

 (1862). 

 Hiruiido meyeni, Baird, Revieiv Amer. B. p. 302 (1865) ; Sclater, 

 P. Z. S. 1867, pp. 321, 337 ; id. S^ Salv. Ibis, 1868, p. 185 ; Oray, 

 Hand-l. B. i. p. 72, no. 848 (1869) ; Scl. <t Salv. P. Z. S. 1870, 

 p. 499, & 1878, p. 432 ; iid. Report Voy. ' Challenger,^ ii. Birds, p. 100 

 (1881). 



Adult. General colour above glossy purplish blue, with a broad 

 white band across the rump ; lesser and median wing-coverts like 

 the back ; greater coverts blackish, washed with blue externally ; 

 bastard-wing, primary-coverts, and quiUs blackish, with a dull 

 bluish gloss ; upper tail-coverts purplish blue ; tail-feathers blackish 

 washed with steel-blue ; lores and feathers below the eye velvety 

 black, with a very narrow supraloral white line ; head, ear-coverts, 

 and sides of neck purplish blue like the back ; cheeks and under sur- 

 face of body white, with a dusky spot at the base of the cheeks ; on 

 the chest a slight shade of smoky brown ; sides of upper breast brown 

 with a wash of puqjUsh blue ; sides of body also washed with pale 

 smoky brown ; axillaries and iinder wing-coverts smoky brown ; 

 quills dusky brown below, lighter on the inner webs. Total length 

 5'5 inches, culmen 0'35, wing 4-2, tail 2*1, tarsus 0'45. 



Young. Differs from the adult in being duller in colour and 

 much browner on the head and wings, with narrow ashy-whitish 

 edges to the inner secondaries ; supraloral white streak more dis- 

 tinct ; throat tinged with sandy buff ; fore neck and chest mottled 

 with brown bases, and the centre of the chest with a distinct brown 

 streak caused by the brown inner webs of some of the feathers ; 

 gape yellow. (Mas. Salvin and Godman.) 



Hah. From Chili and Southern Patagonia to Bolivia. 



a. Ad. sk. Cliili. Sclater Collection. 



b,c. M.;d. 3uY.sk. Chili. E. C. Eeed, Esq. [C.]. 



e,/. cJad. ;^. Jimm. sk. Chili (Reed). R. B. Sharpe, Esq. [P.]. 



h. Ad. sk. Prov. Colchagua E. B. Sharpe, Esq. [P.]. 



(Reed). 



I $ ad. ;k,l.S2 jii^- Sandy Point, Straits Voy. H.M.S. 'Challenger 



sk. of Magellan . 



m. Ad. sk. Bolivia (Brydges). Sclater Collection. 



5. Tachycineta bicolor. 



Hirundo bicolor, Vieill. Ois. Amer. Sept. i. p. 61, pi. 31 (1807) 

 Audiib. B. Amer. pi. xcviii. (c. 1826) ; Swains, and Rie/iards. Faun 

 Bor.-Ainer., Birds, p. 328 (1831) ; Audub. Orn. Bioc/r. i. p. 49 

 (1831) ; id. B. Amer. 8vo, i. p. 175, pi. 46 (1840) ; Gray, Gen. B. i. 

 p. 58 (1845) ; Lembeye, Av. Cuba, p. 46 (1850) ; Wolley, Zool. 1853 

 p. 3800; Cms. III. B. Calif. ^. 244 (1856) ; Breiver, N. Amer. Ool 

 p. 100, pi. 4 (1837) ; Neiviun, P. Z. S. 1800, p. 131 ; Baird, Cass., ^ 

 Lawr. B. N. Amer. p. 310 (1860) ; Blakist. Ibis, 1862, p. 4, 1863 

 p. 64 ; Gray, Cat. Brit. B. p. 33 (1863) ; Baird, Review Amer. B 

 p. 297 (1865) ; id. Ibis, 1867, pp. 273, 275, 289 ; Broion, Ibis, 1868 

 p. 420; Dall ^ Bann. Trans. Chicago Acad. i. p. 279 (1869) 



