BIRDS OF NORTH AND MIDDLE AMERICA. 697 
Nidification.—Nest in cavities of rocks, composed of mud and moss.* 
Range.—Southern Mexico to southern Brazil, Bolivia, and Peru; 
Cuba; Haiti; Jamaica; Grenada. (Three species.) 
KEY TO THE SPECIES AND SUBSPECIES OF STREPTOPROCNE. 
a, Tail emarginate; under parts with more or less of white; smaller (wing not more 
than 204 mm.). 
b. Under parts black with a white band across chest. (Adults.) 
c. White collar continuous around neck. (Streptoprocne zonaris.) 
d. Forehead sooty black, scarcely if at all different from color of crown. 
e. General color less intensely black (more sooty); larger (wing 214 mm.). 
(Southern Brazil and northern Argentina.) 
Streptoprocne zonaris zonaris (extralimital).? 
ee. General color deep or intense black; smaller (wing 188-207 mm.). 
(Northern South America to Costa Rica.) 
Streptoprocne zonaris albicincta (p. 697). 
dd. Forehead always sooty gray or grayish brown, distinctly different from 
black of crown. 
e. No white line on sides of forehead. (Southern Mexico to Guatemala and 
British Honduras.) ....Streptoprocne zonaris mexicana, adults (p. 700). 
ee. A narrow white line along side of forehead. (Jamaica; Cuba.) 
Streptoprocne zonaris pallidifrons, adults (p. 701). 
ec. White collar interrupted on sides of neck (confined to hindneck and chest). 
(Southeastern Brazil.).............- Streptoprocne biscutata (extralimital).¢ 
bb. Under parts sooty with whitish terminal margins to feathers. 
Streptoprocne zonaris mexicana, young (p. 700). 
aa. Tail even; under parts without any white (uniform sooty); larger (wing 228-233 
Mimd.). -(QMOXI00:). 5.086552 50 socsereeeeaenes Streptoprocne semicollaris (p. 702). 
STREPTOPROCNE ZONARIS ALBICINCTA (Cabanis). 
COLOMBIAN COLLARED SWIFT. 
Similar to S. 2. zonaris, of Brazil, but decidedly smaller and 
coloration much blacker. 
Adults (sexes alike) —Pileum black, usually slightly (but rarely 
distinctly, never conspicuously) more sooty on forehead; sides of 
@ Salmon, Proc. Zool. Soc. Lond., 1879, 531. 
b Hirundo zonaris Shaw, in Miller’s Cimel. Phys., 1796, 100, pl. 55 (type locality 
not stated, but is assumed to be Brazil).—H[emiprocne] zonaris Cabanis and Heine, 
Mus. Hein., ii, 1860, 83 (Brazil).—Chetura zonaris Sclater, Cat. Am. Birds, 1862, 
282, part (8s. Brazil).—Hirundo albicollis Vieillot, Nouv. Dict. d’Hist. Nat., xiv, 
1817, 524 (Brazil)—Hirundo collaris Maximilian, Reise Bras., i, 1820, 75 (Rio 
de Janeiro, Brazil).—Cypselus collaris Temminck, Pl. Col., 33d livr., Jan., 1821, 
pl. 195; Maximilian, Beitr. Nat. Bras., iii, 1830, 344.—Acanthylis collaris Bur- 
meister, Syst. Ueb. Th. Bras., i, pt. ii, 1856, 364.—Ch[aetura] zonaris (typica) Hartert, 
Das Tierreich, Podarg., Caprim., Macropt., 1897, 74, part.—Streptoprocne zonaris 
zonaris Oberholser, Proc. Biol. Soc. Wash., xix, May 1, 1906, 69, part. 
¢ Chetura biscutata Sclater, Proc. Zool. Soc. Lond., 1865, 609, pl. 34 (Ypanema, 
s. e. Brazil; coll. P. L. Sclater; ex Cypselus biscutata Natterer, manuscript); Hartert, 
Cat. Birds Brit. Mus., xvi, 1892, 479.—[Hemiprocne] biscutata Sclater and Salvin, 
Nom. Av. Neotr., 1873, 95.—Streptoprocne biscutata Oberholser, Proc. Biol. Soc. 
Wash., May 1, 1906, 69. 2 
