FALCO. 119 
‘Hab. NortH America, Southern Texas, New Mexico, and Arizona ?.—Merxico, 
Altamira, Tampico (Armstrong®’), Mazatlan, San Blas (Grayson +), Omealca, 
Tehuantepec city (Sumichrast *1>), Vera Cruz (Sallé}!), Jalapa (De Oca}?) 
Yucatan (Cabot '*, Gaumer 1°); Guaremata (Skinner 13), San Agustin (0. 8S. & 
F. D. G.).—Sovrn America generally to Patagonia 3. 
In the South-western United States this Falcon breeds, and in many districts is not 
uncommon. Though not unfrequent in Mexico, it is probably only a winter visitor 
there. In Guatemala we obtained a single specimen at San Agustin. Of the presence 
of the bird in Nicaragua, Costa Rica, and Panama there is no record. In South 
America its distribution is very wide, extending as far as Patagonia. 
This species is said to be more shy than most of the American Falcons. ‘The food 
consists of small mammals, birds, and insects. The nest is composed of twigs with a 
lining of grass, and is placed in a small bush or cactus ten or fifteen feet from the 
ground ; occasionally the old nest of a Crow is utilized. 
The eggs, generally three in number, are of a dull yellowish white, thickly sprinkled 
with red spots and blotches, resembling those of the Gyr-Falcon in the richness of their 
colour. 
6. Falco columbarius. 
The Pigeon Hawk, Catesby, Nat. Hist. Carolina, i. p. 3, t. 37. . 
Falco columbarius, Linn. Syst. Nat. i. p. 128°; Sharpe, Cat. Birds Brit. Mus. i. p. 408°; 
Sumichrast, La Nat. v. p. 237*; Ferrari-Perez, Pr. U. S. Nat. Mus. ix. p. 168°; Ridgw. 
Pr. U.S. Nat. Mus. x. p.577° ; Herrera, La Nat. (2) i. pp. 176, 320"; Cherrie, Auk, 1892, 
p. 828°; Bendire, Life Hist. N. Amer. Birds, 1. p. 298, t. 10. figs. 4,8°; Fisher, Buli. U.S. 
Dep. Agr. no. 3, p. 109, t. 167°; Allen, Bull. Amer. Mus. Nat. Hist. v. p. 34"; A. O. U. 
Check-l. N. Amer. Birds, p. 1388”; Nelson, N. Amer. Fauna, no. 14, p. 38”. 
Hypotriorchis columbarius, Lawr. Ann. Lyc. N. Y. ix. p. 184; Mem. Bost. Soc. N. H. ii. 
p- 300"; v. Frantz. J. f. Orn. 1869, p. 369°; Salv. P. Z. 8. 1870, p. 215"; Ibis, 1889, 
p. 875°; Grayson, Pr. Bost. Soc. N. H. xiv. p. 269°. 
‘Supra clare cinereus, plumarum rachidibus nigris valde indicatis ; pileo et interscapulio dorso concoloribus, 
sed nigro latius striatis; torque cervicali interrupto albo rufoque mixto; remigibus nigris, intus 
grisescenti-albo fasciatim notatis; cauda clare cinerea, albo terminata, fasciis nigris plus minusve 
interruptis notata, fascia subterminali latissima ; loris et striga superciliari albidis, nigro striolatis ; facie 
laterali et regione parotica fulvidis, nigro distincte lineolatis ; gutture albo, vix nigro striolato; collo 
laterali et corpore subtus reliquo rufescentibus, plumis medialiter nigro striatis; hypochondriis brunneis, 
maculis albis ovalibus notatis; abdomine tibiisque rufescentioribus, nigro striolatis; subcaudalibus 
rufescenti tinctis, sed clare cinereo lavatis et medialiter nigro striatis; subalaribus albis, pallide brunneo 
transfasciatis. Long. tota circa 11-0, ale 7:7, caudw 4:7, culm. 0-7, tarsi 1-4. (Descr. maris ex Ins. 
Ruatan. Mus. nostr.) 
? mari similis, sed ubique saturatior: supra brunnescentior, minime schistaceus; facie laterali sordide 
brunnea: subtus fulvescenti-albus, gutture maculis sagittiformibus ornato; gastro reliquo ochrascent , 
plumis medialiter late brunneo striolatis; hypochondriis maculis albis ovatis notatis; rectricibus 
centralibus fere concoloribus, reliquis autem rufescenti fasciatim maculatis. Long. tota circa 11°5, 
ale 8:4, caude 5:1, culm. 0°7, tarsi 1-4. (Descr. feminz ex Walla Walla. Mus) nostr.) 
