396 CAPRIMULGID. 
1. Chordeiles virginianus. v 
Le Tette-chévre de Virginie, Briss. Orn. ii. p. 477". 
Caprimulgus virginianus, Gm. Syst. Nat. i. p. 1028 °. 
Chordeiles virginianus, Sw. Faun. Bor.-Am. ii. p. 496°; Scl. & Salv. Ibis, 1860, p. 275*; P.Z.S. 
1864, p. 364°; Scl. P. Z. S. 1866, p. 183°; Hartert, Cat. Birds Brit. Mus. xvi. p. 610°. 
Caprimulgus popetue, Vieill. Ois, Am. Sept. i. p. 56, t. 24°. 
Chordeiles popetue, Salv. P. Z. S. 1870, p. 203°; Baird, Brew., & Ridgw. N. Am, Birds, ii. p. 401”. 
Chordeiles henryi, Cassin, Ill. Birds Cal. & Texas, p. 289"; Scl. P. Z. 8. 1866, p. 133°; Hartert, 
Cat, Birds Brit. Mus. xvi. p. 612. 
Chordeiles popetue, var. henryi, Baird, Brew., & Ridgw. N. Am. Birds, ii. p. 404 " 
Chordeiles sennetti, Coues, Auk, 1888, p. 37”. 
Supra nigricans plus minusve albo et fulvo maculatus, humeris nigris, tectricibus alarum reliquis albo guttulatis, 
primariis nigris pennis quinque externis plaga magna ad medium alba, secundariis albo indistincte 
fasciatis: subtus gule lateribus nigris fulvo maculatis, gutture plaga magna transversa alba usque ad 
mentum extendente, pectore nigricante fulvo guttato, abdomine nigro et albido regulariter transfasciato ; 
tectricibus subcaudalibus albis nigro sparsim transfasciatis ; cauda nigricante indistincte griseo fasciata, 
rectricibus omnibus (duabus mediis exceptis) fascia subterminali alba. Long. tota circa 9:5, ale 8-0, 
caude rectr, med. 3°85, rectr. lat. 4:5, tarsi 0°65, dig. med. cum ungue 0°8. (Descr. maris ex San 
Agustin, Nuevo Leon, Mexico. Mus. nostr.) 
@ mari similis, sed subtus rufescentior, fascia cauda subterminali alba nulla. 
Juv. supra niger rufo dense variegatus : subtus (cauda inclusa) undique nigro et rufo regulariter transfasciatus. 
Hab. Norta Amertca?, generally in summer from Hudson’s Bay southwards, Texas.— 
Mexico, San Agustin, Vaqueria in Nuevo Leon (/. B. Armstrong), Xeres in 
Zacatecas (W. B. Richardson "*), Atotonileo (F. Ferrari-Perez); Brimisy Hov- 
puRAS, Southern Pine-ridge (F. Blancaneaux*); GuatemaLa, Coban (0. S. & 
F. D. G.4), La Grande (Ff. Oates); Panama, Calovevora (Arcé®), Lion Hill 
(M‘Leannan*).—Sovtn America, Colombia, Amazons Valley; BauamMa Is.; 
GREATER ANTILLES. 
Though some specimens from our north-eastern frontier are paler than the more 
typical form, and whiter on the abdomen and under tail-coverts, we are quite unable to 
separate them from the darker birds, which are no doubt typical Chordeiles virginianus, 
the paler ones being C. henryi. So far as we can see, and we have examined a large 
series of skins, any attempt to arrange the series in more than one group must leave a 
considerable number undetermined as equaily referable to one form or the othér. A 
still larger series cannot fail to render any separation more difficult. We should have 
preferred to keep C. henryi separate, and used the name for the pale bird of our northern 
frontier, but with these birds we find others of the darker type and all associating 
together towards the end of May in their breeding-season. . 
Dr. Coues!5 has separated C. virginianus into four subspecies, making two of the 
so-called light-coloured western form. Mr. Hartert, in his recent Catalogue of the 
Caprimulgide, kept C. virginianus and C. henryi as subspecies, and made a section of 
the former to include specimens supposed to blend the two together. This is certainly 
