70 FALCONID. 
Cherrie, Auk, 1890, p. 3337; 1892, p. 328°; Richmond, Pr. U. 8. Nat. Mas. xvi. p. 522°; 
Bendire, Life Hist. N. Amer. Birds, p. 24, t. 7. ff. 10-18"; Fisher, Bul). U. S. Dep. Agr. 
no. 8, p. 79, t. 10"; A. O. U. Check-list N. Amer. Birds, p. 133. 
Falco pennsylvanicus, Wils. Am. Orn. vi. p. 92, t. 54. f. 1 (nec vi. t. 46. f. 1= Accipiter velox)”. 
Buteo pennsylvanicus, Scl. P. Z. S. 1857, p. 211"; Scl. & Salv. Ibis, 1859, p. 217"; P.Z.S. 1864, 
p. 8369"*; Lawr. Ann. Lye. N. Y. vii. p. 28877; ix. p. 133"; Bull. U. 8. Nat. Mus. no. 4, 
p. 41"; v. Frantz. J. f. Orn. 1869, p. 368”; Salv. P. Z. S. 1870, p. 215”; Ferrari-Perez, 
Pr. U. S. Nat. Mus. ix. p. 167”. 
6. Supra brunneus, griseo adumbratus; tectricibus alarum minimis et medianis dorso concoloribus, 
majoribus autem remigibusque grisescenti-brunneis, apicem versus saturate brunneis, et fasciis saturate 
brunneis paucis notatis; supracaudalibus, precipue his lateralibus, late albo maculatis vel fasciatis ; 
cauda saturate brunnea, brunneo subterminaliter ante marginem apicalem terminata, et fasciis albidis 
3-notata, fascia brunnea mediana et subterminali latissimis; gutture albido, anguste brunneo striolato ; 
fascia mystacali saturate brunnea: corpore reliquo subtus maculis rufis et albis fasciatim variegato, 
hypochondriis tibiisque rufo magis distincte fasciatis; subcaudalibus albis; subalaribus albis, maculis 
sagittiformibus parvulis notatis ; axillaribus albis, rufo fasciatis; remigibus intus albis. Long. tota 14:5, 
ale 10-6, caude 6-0, culm. 1:1, tarsi 2-6. (Descr. maris ex Boquete de Chitra. Mus. nostr.) 
Q. Mari similis, sed paullo saturatior et subtus brunneo magis marmoratus. Long. tota circa 17-0, ale 109. 
(Descr. fem. ex Duefas. Mus. nostr.) 
Juv. Brunneus, rufo variegatus ; pileo et interscapulio albido striolatis; supracaudalibus lateralibus conspicue 
albo fasciatis; cauda brunnea, fasciis 8 saturatioribus, fascia subterminali latiore ante apicem pallidam : 
subtus albus, maculis longitudinalibus et cordatis; tibiis magis distincte brunneo fasciatis. (Descr. 
exempl. juv. ex Duenas. Maus. nostr.) 
Hab, Kastern Norto America, from New Brunswick and the Saskatchewan Region to 
Texas.—MExi00, Presidio de Mazatlan (Forrer), Volcan de Colima (W. B. Richard- 
son), Orizaba (Bottert 1+), Coatepec (M. Trujillo), Jalapa (Ferrari-Perez 22), Santa 
Efigenia (/. Sumichrast® 1°); Guatemata (Skinner 5), Santa Rosa above Salama 
(O. S.), Duefias, San Gerdénimo (0. 8. & F. D. G.); Nicaragua, La Libertad 
and Santo Domingo, Chontales, Leon (W. B. Richardson), Rio Escondido (C. W. 
Richmond °); Costa Rica’, San José (v. Frantzius, C. F. Underwood, G. K. Cherrie 8, 
J. Carmiol'®, A, Boucard*), Jiménez (J. Zeledon °), Angostura (J. *Carmiol 18), 
Carillo, Barba (C. F. Underwood), San Lucas, Talamanca (Mus. Nac. Costa Rica) ; 
Panama (J. M‘Leannan 17), Boquete de Chitra, Calovevora, Calobre, Volcan de 
Chiriqui (£. Arcé*!), Paraiso Station (Hughes).—Cotompia?; Eovapor ; VENEZUELA: 
Upper AMAZONS?; GREATER AND LESSER ANTILLES. 
The small size of B. latissimus is perhaps the chief characteristic by which it can be 
istinguished, but it may also be recognized by the excisions on the inner web of the 
primaries, only three of which exhibit this peculiarity. The species is, on this account, 
nearly allied to B. swainsoni and B. albifrons. The marking of the tail in B. latissimus 
is peculiar, the adult having three dark and two light bars, while the young birds have 
five dark bars, of which the subterminal one is much the broadest. 
It breeds throughout the greater part of North America 12, as far north as New 
Brunswick, Southern Canada, and the Saskatchewan region, becoming gradually scarcer 
e 
