NO. 9 BIRDS OF ISLA COIBA, PANAMA—WETMORE 73 
PIPROMORPHA OLEAGINEA LUTESCENS Griscom: Ochre-bellied 
Flycatcher, Moscareta Vientre Canelo 
Pipromorpha oleaginea lutescens Griscom, Amer. Mus. Nov., No. 280, Sept. 10, 
1927, p. 9. (Santa Fé, Veraguas.) 
These small birds rest on open perches in the tops of the under- 
growth, or in the lower branches of trees. As they are found in 
shaded forest, their subdued colors make them inconspicuous in their 
shadowed haunts, particularly since they tend to rest quietly for 
minutes at a time. On Coiba I saw them in heavy forest, and in 
more open woodland behind the mangroves. 
The four specimens from Coiba are very faintly duller green above 
than mainland examples. The three males also have very slightly 
longer wings and tails than those from Veraguas and eastern Chiriqui. 
The differences however are too tenuous to warrant a name. 
Family HrruNDINIDAE: Swallows 
PROGNE CHALYBEA CHALYBEA (Gmelin): Gray-breasted Martin, 
Golondrina de Iglesia 
Hirundo chalybea GMELIN, Systema naturae, vol. 1, pt. 2, 1789, p. 1026. (French 
Guiana. ) 
The gray-breasted martin was seen regularly in and around dead 
trees standing in the clearings behind the convict camps, or flying 
about the plantations of coconut palms. On February 4, while in a 
cayuco a mile offshore and to the south of Isla Rancheria, one flew 
past in a line that led back to distant Isla Canal de Afuera, indicating 
that these birds of strong flight cross easily between the widely 
separated islands of these waters. Three males in nonbreeding stage 
were prepared as specimens. 
HIRUNDO RUSTICA ERYTHROGASTER Boddaert: Barn Swallow, 
Golondrina de Paso 
Hirundo erythrogaster BoppaErt, Table des planches enluminéez, 1783, p. 45. 
(French Guiana.) 
The barn swallow, an abundant migrant and visitor from the north 
on the mainland of Panama, appears to wander over the adjacent 
waters. On Coiba Island I collected a female bird from the telephone 
wire near Bajo Espafia January 12. Another appeared January 25 
at the Colonia Central during a rain, and January 27 I saw two near 
the mouth of the Rio Catival. Since I had these areas under regular 
observation and saw no others, it appears that these swallows are of 
only casual occurrence. 
