FAMILY IIIRUNDINIDAE 



19 



M'Leannan once had in his possession a few Cuban birds which he 

 obtained in exchange, it is just possible that his specimen of P. fulva 

 may have come from Cuba, and not from Panama; but, on the other 

 hand, one of the island birds may have strayed thus far." The bird, in 

 immature plumage, has no additional data in the museum catalog. The 

 species differs from the Cliff Swallows in paler rufous of the head 

 markings, darker chestnut of the rump, and lack of black spot on the 

 throat. 



Sharpe (Cat. Birds Brit. Mus, vol. 10, 1885, addenda, p. 636) lists 

 it under P. fulva as "n. Imm. sk. Panama (McLeannan). Salvin- 

 Godman Coll." Ridgway (Birds North and Middle Amer., pt. 3, 1904, 

 p. 55) cited it as "Panama?," with references to Salvin and Godman, 

 and Sharpe. 



One Cave Swallow was carefully observed with other migrant swal- 

 lows at Juan Diaz, eastern Province of Panama, on March 10, 1976, by 

 Ridgely (in litt. ) . One was seen at Tocumen, eastern Province of Pan- 

 ama, by V. Emanuel on February 9, 1980. 



The data are too uncertain to warrant inclusion of this species as a 

 valid record. The winter range of the Cave Swallow is still unknown.] 



PROGNE CHALYBEA CHALYBEA (Gmelin): Gray-breasted 

 Martin; Golondrina Urbana 



Hirundo chalybea Gmelin, Syst. Nat., vol. 1, pt. 2, 1789, p. 1026. (French Guiana.) 



Slightly smaller than the migrant Purple Martin; end of outer tail 

 feathers somewhat narrowed and tip of tail notched; male and female 

 alike in color pattern on undersurface. 



Description. — Length 160-180 mm. Adult male, upper surface, in- 

 cluding the lesser wing coverts, dark steel blue, changing on forehead 

 to dull brown; wings and tail black, faintly bluish on outer webs; fore- 

 head, side of head and neck, breast and sides dull brown, paler on upper 

 throat which often is mottled with white; upper breast and sides edged 

 more or less with white rarely with the white extensive; lower breast, 

 abdomen, and undertail coverts white, with slightly marked narrow 

 shaft lines of black on undertail coverts; axillars and underwing coverts 

 dark sooty gray; longer underwing coverts usually tipped with white. 



Adult female, similar, but duller blue, more brownish above. 



Immature, distinctly browner above; upper foreneck and throat 

 whitish in varying amount; breast duller, usually with paler tips on the 

 feathers. 



A female, with ovaries not developed, taken at Olivo, 9 km northeast 



