270 PROCEEDINGS OF THE ACADEMY OF [June-Oct.^ 



A dull stupid bird, perching high up in the forest. 



[312.] Cotinga nattererii (Boissoneau). Naterer's Cotinga. 



313. Querula purpurata (Miiller). Purple-throated Fruit Crow. 



Male and female, Gatun, June 23, 1912, Iris brown, bill blue- 

 gray black at tip, feet black. 



It flocks in the forest, a shy species. 



HIRUNDINID^. 

 *314. Riparia riparia (Linnseus). Bank Swallow. 



Male, Gatun, September 23, 1911. 

 Shot from a flock of migrants. 



315. Iridoprocne albilineata (Lawrence). Mangrove Swallow. 



Two males and a female, Gatun, July 17, May 30, 1911, and July 

 17, 1911. Iris brown, bill blue-black, feet black. 



Common along the Chagres River, where it nests in holes in partly 

 submerged stumps. 



3^16. Pygochelidon cyanoleuca (Vieillot). Blue and White Swallow. 



Male and female, Gatun, July 7 and 16, 1911. Iris dark brown, 

 bill and feet black. 



On the former date a flock was coursing over the lawns and clear- 

 ings. On the latter some two hundred were lined up on a telephone 

 wire. 



[317.] Neochelidon tibialis (Cassin). White-thighed Swallow. 

 *318. Hirundo erythrogaster Boddaert. Barn Swallow. 



Male and female, Gatun, April 20 and May 30, 1911. 



A common migrant through April. The unusually late female 

 specimen showed a breeding tendency, as several eggs were well 

 started. It was associated with a flock of Iridoprocne albilineata. 



319. Progne chalybea chalybea (Gmelin). Gray-breasted Martin. 



Male, Gatun, February 4, 1912. Another was obtained at the 

 same place April 13, 1911, but is not in the collection. Iris brown, 

 bill and feet black. 



Nest in holes usually inaccessible on account of the mud and water. 



*[320.i Petrochelidon lunifrons tachina Oberholser. Lesser Cliff Swallow. 

 320a. Stelgidopteryx serripennis (Audubon). Rough-winged Swallow. 



A male, Gatun, December 18, 1910, is typical of this species except 

 for a slight subterminal dusky blotch on the longest under tail coverts. 

 It is quite uniform above and is thus distinguished at a glance from 

 specimens of S. ridgwayi. This occurrence is apparently farther 

 south than any previously recorded. 



