5. TKOGON. 451 



5. Trogon ambiguus. 



Trogon ambiguus, Gould, P. Z. S. 1835, p. 30 ; id. Mon. Trot/, ed. i. 



pi. 4 (1838) ; Gra>/, Gen. B. i. p. 69 (1845) ; Bona}). Consp. Gen. 



Av. i. p. 149 (1850) ; Gould, Mon. Trog. ed. ii. pi. 8 (1858) ; 



Lmorence, Mem. Boston Soc. ii. p. 290 (1874) ; Ridgiv. Auk, iv. 



p. 161 (1887) ; id. P. U. S. Nat. Mtts. x. p. 147 (1887). 

 Trogon (Ti-ogonurus) ambiguus, Grai/, Hand-l. B. i. p. 82 (1869). 

 Trogonm-us ambiguus, Bp. Consp. Vol. Zyg. p. 14 (1854). 

 Trogon mexicanus, Baird (nee Sivains.), U.S. Me.v. Bound. Surv., 



Birds, p. 5, pi. 2. figs. 1 [^ ad.] & 2 Tjuv.] (1859); id. B. N. 



Amer. p. 69, Atl. pi. (1860). 



Adult male. Resembles the adult male of T. ehgans, but the 

 upper parts are golden bronze with green reflexions, most pro- 

 nounced on the rump and upper tail-coverts ; the middle pair o£ 

 tail-feathers are rich fiery crimson-bronze with dark green reflexions 

 and wide black terminal bars, the second and third pairs repeat the 

 same colour on the outer web, and the three outer pairs have black 

 bases and wide white ends, separated by a more or less distinct 

 black line from the remainder of the feather, which is white freckled 

 with black: bill yellow. Total length 11'2 inches, wing 5'3, 

 tail Q-Q, tarsus 0'6o. 



The immature males differ from the adult in having the white 

 pectoral zone extending on to the breast ; the middle pair of tail- 

 feathers rufous, at the extremity merely edged with black, the 

 second and thii'd pairs of feathers black, with the margin of the 

 outer web glossed with bronze, while the three outer pairs have the 

 basal and central portion of the feathers black, the margins white 

 with narrow wide-set bars of black, and the extremities white. 



In less mature specimens the greater part of the head, back, and 

 chest are brown, and the breast and under tail-coverts a mixture of 

 whitish brown and white tipped with duskj' ; the median wing- 

 covcrts, greater secondarj'-coverts, and scapulars are widely tipped 

 with white or buff' and edged with black. 



In quite young the plumage of the upper parts and chest is brown, 

 inclining to rufous on the rump ; the white pectoral zone is dis- 

 tinctly marked, the breast and belly are buff-white tipped with 

 brown, and the rest of the plumage is as above. 



Adult female, llesembles the female of T. elegans, but the three 

 outer pairs of tail-feathers resemble those of the adult male of her 

 own species ; but the black freckling is coarser and forms a few ir- 

 regular bars immediately behind the black line which bounds the 

 white extremity : bill yellow. Total length 1 1*2 inches, wing o2, 

 tail 6'5, tarsus 0*65. 



The younr/ female resembles the quite young male described 

 above, but has the middle tail-feathers uniform rufous-brown, not 

 edged with black at the extremity, and a few pink feathers round 

 the crissum. 



Hab. Mexico. 



a, b. S 2 ^^- s^- Mexico (Floresi). Gould Coll. 



c. c? imm. sk. Mexico (Richardson). Salvin-Godman Coll. 



d. 2 imm. sk. W. Mexico (Bartlett). Sclater Coll. 



2g2 



