FALCONIDZ. 
Stone, Pr. Acad. Phil. 1890, pp. 205°, 214°; Cherrie, Auk, 1892, p. 328”; Richm. Pr. 
U. S. Nat. Mus. xvi. p. 520%; Bendire, Life Hist. N. Amer. Birds, i. p. 309, t. 10. 
figs. 11-16"; Fisher, Bull. U.S. Dep. Agr. no. 8, p. 115, t.17%; A.O.U. Check-l. 
N. Amer. Birds, p. 140"; Underwood, Ibis, 1896, p. 446'"; Chapman, Bull. Amer. Mus. 
N. H. viii. p. 286%; Nelson, N. Amer. Fauna, no. 14, p. 38". 
Tinnunculus sparverius, Scl. P. Z. S. 1856, p. 284°; 1858, pp. 295*', 357"; 1859, pp. 368 390; 
1864, p. 178°; Moore, P. Z. S. 1859, p. 52”; Scl. & Salv. Ibis, 1859, p. 219 7. P. ZS. 
1870, p. 888%; Dugés, La Nat. i. p. 188”; Salvin, P. Z. S. 1867, p. 158° ; 1870, p. 215"; 
Ibis, 1872, p. 323°; Cat. Strickl. Coll. p. 503°; Lawr. Ann. Lyc. N. Y. ix. pp. 184%, 
207°: Mem. Bost. Soe. N. H. ii. p. 301%; Bull. U. S. Nat. Mus. no. 4, p. 89%; 
v. Frantz. J. f. Orn. 1869, p. 369%; Grayson, Pr. Bost. Soc. N. H. xiv. p. 269*; Nutting, 
Pr. U.S. Nat. Mus. v. p. 403%; vi. pp. 877%, 388“; Ridgw. Pr. U.S. Nat. Mus. v. 
pp. 498 *, 502“; Boucard, P. Z. 8. 1883, p. 457”. 
Cerchneis sparveria, Sharpe, Cat. Birds Brit. Mus. i. p. 437 “©. Boucard, P. Z.S. 1878, p. 45%; 
Sumichr. La Nat. v. p. 237“. 
Falco sparverius deserticolus, Mearns, Auk, 1892, p. 263“; Allen, Bull. Amer. Mus. N. H. v. 
p. 34°°. 
Cerchneis deserticola, Sharpe, Hand-l. Birds, i. p. 278”. 
Supra cinnamomeus, dorsi plumis paucis nigro transfasciatis, scapularibus cinereo apicem versus adumbratis ; 
tectricibus alarum pulchre schistaceis, maculis nigris cordiformibus ornatis; tectricibus primariorum 
schistaceis, nigro transfasciatis ; remigibus nigricantibus, intus late albo fasciatis; secundariis pulchre 
schistaceis, basin versus nigris et intus albo fasciatim notatis; dorso postico, uropygio, supracaudalibus 
caudaque cinnamomeis, hac albo terminata, fascia lata subterminali nigra; pileo pulchre schistaceo, 
macula magna verticali cinnamomea vel pallide castanea; loris et fronte basali, cum supercilio angusto, 
albidis ; regione oculari et fascia mystacali nigris; facie laterali reliqua alba, regione parotica nigro 
circumdata ; gutture albido; corpore reliquo subtus pallide cinnamomeo, pectore et hypochondriis maculis 
ovalibus vigris notatis; tibiis et subcaudalibus pallidioribus, lactescenti-albis, immaculatis ; subalaribus 
albis, nigro maculatis: rostro cyanescente, apice nigro; cera flava; pedibus flavis, unguibus nigris ; 
iride brunnea. Long. tota circa 10°5, ale 7°7, caude 4:95, culm. 0°6, tarsi 1-45. (Descr. maris ex 
fl. Salado, Nuevo Leon. Mus. nostr.) 
© maridissimilis. Supra sordide cinnamomeus, sed ubique schistaceo-fusco transfasciatus ; tectricibus primari- 
orum secundariisque maculis cinnamomeis fasciatim notatis ; primariis nigricantibus, cinnamomeo vel 
rufescenti-albido intus triquetrim notatis; supracaudalibus rectricibusque cinnamomeis, schistaceo-nigro 
transfasciatis, fascia subterminali latiore; pileo et facie laterali ut in mari picturatis; gutture albo ; 
gastreo reliquo pallide cinnamomeo-brunneo, plumis late albido marginatis vel maculis ovalibus albidis 
notatis vel fasciatis; tiblis et subcaudalibus albidis fere immaculatis; subalaribus et axillaribus pectoris 
concoloribus. Long. tota circa 11:5, ale 7°7, caude 4°8, culm. 0-6, tarsi 1:4. (Descr. femine ex 
Oaxaca. Mus. nostr.) 
Hab. Nortu America, east of the Rocky Mountains, and from the Great Slave Lake 
south to Northern South America (7. sparverius), Western United States, north 
to Eastern British Columbia and Western Montana, south to Mazatlan in North- 
western Mexico (Z. deserticolus)1®.— Mexico (Deppe & Schiede®, Wagler®), 
Pachico, Granados, Nacori (Robinette ®°), Tutuaca, Chihuahua 9600 feet, Santa 
Isabel, El Toro (Lloyd), Mazatlan (Grayson **, Forrer), Tres Marias Islands 
(Grayson °639, Forrer, Nelson'®), Aldama, Tamaulipas, Tamesi, Plains of San 
Luis Potosi, Ajusco, Zacatecas, Aguas Calientes, Bolafios (Richardson), Santana 
