358 SHRIEKIXG BIRDS— STKISORES. 



Ijy Nuttall as the S. rufus seen there in autumn. Their habits at that 

 season do not exhibit anything peculiar. 



Genus CALYPTE, Gould. 



Cahjptc, Gould, IntroJ. Trocliiliiliv, 1801, 87. (Type, Oniismya cosltr ) 



Gex. Char. Bill longer tluin the heail ; ptraiglit or slij;litly curved ; tail rather short ; 

 forked, the outer lijuther abruptly narrower, linear aud incurved (the second and third 



sometimes so to a less degree). Outer primary not attenuated at end. Top of head as 

 ■well as throat with metallic scale-like leathers. A decided and elongated ruff on each 

 side the neck. 



The species of tliis genus will be readily distinguished from their allies in 

 North America by the metallic feathers of top of head. 



Calypte Anna, Lessox. 



THE ANNA HUMMING-BIED. 



Ornismi/a Atmn. Lesson, Oiseaux Mouchcs, 1830 (?) ; pi. cxxiv. — Troclulus Anna, J.^nnixE, 

 Nat. Lil). Hnmmins-Birds, I. 93 ; pi. vi. — AuDUiiox, Orn. Bio,';. V. 1839, 428; ])1. 428. 

 In. Birds Anur. IV. 1842, 188; pi. 2.i2. — Newberry, I". R. Rop. VI. ii. 79.— 

 IIeermann-, X. vi. 56. — CaViphhx Anna. Gambel, Pr. A. N. So, Phil. III. 1846, 3. 

 Ib. Joum. 2d Series, I. 1847, 32. — Aulas Anna (Reichendach), B.\ird, P. R. Rep. 

 IX. Birds, 137. — Calypte Anna, Gould, Introd. Trochilidic. 



TrochHiis icteroce})hahis,'NvTTAJ.h, Man. I. 2d ed. 1840, 712. (Male with forehead covered 

 wiih yellow pollen.) 



Sp. Char. Tail deejilv f irked ; extern.il feather narrow, linear. Tup of the head, 

 throat, and a moderate ruff, metallic rcil, with purple reflections. Rest of upper parts and 

 a band across the breast, f^-een. Tail feathers purplish-brown, darkest centrally. In the 

 fejnale the tail is slightly rounded, not emarginate ; the scales of the head and throat are 



