EXPLANATION OF PLATES. 
IX 
Page. 
Plate 48. (X.) Tijrannus vociferans, Sw. — Cassin's Flycatcher. — New Mexico 174 
49. (XI ) Fig. 1. Tyrannus couchii, Baird. — Couch's Flycatcher. — New Leon. Type... 175 
Fig. 2 Tyrannus melancholicus, Vibill. — Silent Flycatcher. — Tail. (A south Mexican species introduced 
to show the difference in emargination of tail from T. couchii) . 176 
Fig. 3. Empidonax obscurus, Baird. — Wright's Flycatcher.— 7234. El Paso 200 
50. (XII.) Ilarporhynchus lecontii, Bjnap, — Leconte's Thrush. — Fort Yuma. From the type in collection of Geo. 
N. Lawrence - . 350 
51. (XIII.) llarporhynchus curvirostris, Cab. — Curve-billed Thrush. — 7200. Ringgold Barracks, Texas . 351 
52. (XIV.) llarporhynchus longirostris, Cab. — Texas Thrasher. — Mexico 352 
53. (XV.) Fig. 1. Lophophani's u\>ll weberi, Bonap. — Wollweher's Titmouse. — Fort Thorn. Museum Philadelphia 
Academy 386 
Fig. 2. Paroides flaviceps, Baird — Verdin.— Texas. 400 
Fig. 3. Psaltriparus mdanotus, Bonap.— Black-cheeked Tit. — Guatemala. Museum Philadelphia Academy. 396 
54. (XVI.) Fig. 1. Chrysomitris mexicanus, Bonap. — Mexican Goldfinch 424 
Fig. 2. Spermophila moreletii, Puciieran. — Little Seed-eater. — Male. From specimen belonging to P. L. 
Selater. Fig. 3. Sp'runphili nu'-t'ldii. Female. Lt Couch's collection ..... ... 506 
55. (XVII.) Fig. 1. Spizella atrigularis, Baird. — Black-chinned Sparrow. — 4335. Coahuila 476 
Fig. 2. Embernagra rufivirgata, Lawr. — Texas Finch. — Texas .- - 373 
56. (XVIII.) Fig. 1. Cyanospiza partllina, Baird. — Blue Bunting.— 4076. New Leon 502 
Fig. 2. Cyanospiza versicolor, Baird. — Varied Bunting. — 4075. New Leon . .... 503 
57. (XIX.) Fig. 1. Icterus parisorum, Bonap. — Scott's Oriole. — 4056. Male. New Leon. Type of Icterus scoltii, 
Couch - 544 
Fig. 2. Icterus wagleri, Sclater. — Wagler's Oriole. — Male. 4058. Coahuila 545 
58. (XX.) Quiscalus macroura, Sw.— Long-tailed Grakle.— Texas 553 
59. (XXI.) Cyanocitta woodhousii, Baird. — Woodhouse's Jay. — 9345. San Francisco Mountains, New Mexico... 585 
60. (XXII ) Fig. 1. Cyanocitta sordida, Baird. — Mountain Jay. — 9095. Mexico 587 
Fig. 2. Cyanocitta ultramarina, Strickl. — Ultramarine Jay. — Bill and tail, to show the difference from the 
preceding species. 4113. Male. Monterey, Mexico - 588 
01. (XXIII.) Columbajlaviroslris, Wagl.— Red-billed Dove.— 4111. New Leon 598 
02. (XXIV.) Ortyx texanus, Lawr. — Texan Quail. — Male and female. Dr. Heermann's collection 472 
03. (XXV.) Fig. 1. Dendrocygnafulva^jvtat: — Brown Tree Duck. — 10399. Male. Fort Tejon 770 
Fig. 2. Dendrocygna aulumnalis, 'Eytox.— Long-legged Duck.— 9871. Texas 770 
64. Asturina nitida, Bonap. — Mexican Hawk. — Fig. 1 : Adult. Collection of Phila. Academy. Fig. 2: 
4128. Young female. San Diego, Mex 35 
05. Rostrhamus sociabilis, D'Orb. — Black Kite. — Fig. 1 : Adult. Museum Phila. Academy. Fig. 2 : 
Young. Specimen from Florida in Museum Phila. Academy .... 38 
66. Syrnium occidenlale, Xantus. — Tejon|Owl — Type ° 
67. Fig. 1. Corvus floridanus, Baird.— Florida Crow.— 10374. Male. South Florida. Type 568 
Fig. 2. Corvus ossifragus, Wilson. — Fish Crow. — 4515. Male. Washington, D. C 571 
* Syrnium occidentale, Xantus. — Proceedings Phila. Acad. Nat. Sciences, 1859, 193. 
Sp. Char. — A little smaller than S. nebulosum ; general color liver brown, the feathers barred everywhere, even on the flanks 
Axillars and under wing and tail coverts banded transversely with white, the bands towards and on the head are contracted 
into rounded spots. 
General appearance that of S. nebulosum. Prevailing color light liver brown, each short feather with two transverse bars 
of white, the basal one tinged with rufous yellow ; the subterminal pure white and not generally extending to the edges of 
the feathers. These bars have a marginal suffusion of brown darker than the ground color. On the top of the head and 
neck the subterminal bar exhibits a tendency to contraction into rounded or cordate spots, and in other places to a median 
