398 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
SPECIMEN COLLECTED 
lim. 2, Venezuela, Buenos Aires, Brazo Casiquiare, February 21, 1931. 
The single specimen obtained is in molt into adult plumage and 
presents a mixture of its old and new feathering. 
Family RYNCHOPIDAE: Skimmers 
RYNCHOPS NIGRA CINERASCENS Spix: Brazilian Skimmer 
Rhynchops cinerascens Srrx, Avium species novae... Brasiliam ..., vol. 2, 1825, 
p. 80, pl. cii (Rio Amazonas). 
SPECIMENS COLLECTED 
1 ad. #, 1 ad. 9, Venezuela, Brazo Casiquiare, Playa de Candela, February 
10, 1931. 
The under wing coverts in the female are slightly darker than in 
the male. The two specimens are in perfect breeding plumage. 
They are included in the locality records given by Wetmore (Caldasia, 
vol. 3, No. 1, 1944, p. 115). 
Family COLUMBIDAE: Pigeons 
COLUMBA SPECIOSA Gmelin: Scaled Pigeon 
Columba speciosa GMELIN, Systema naturae, vol. 1, pt. 2, 1789, p. 783 (based 
on “Pigeon ramier, de Cayenne”? Daubenton, Planches enluminées . . ., 
pl. 213: Cayenne). 
SPECIMEN COLLECTED 
1 ad. o&, Venezuela, Puerto Ayacucho, Rfo Orinoco, January 10, 1930. 
The single specimen obtained was noted as being in breeding con- 
dition when collected. 
This is a wide-ranging, nonvarying bird that occurs without racial 
differentiation from southeastern Mexico to southern Matto Grosso 
and to Paraguay. 
COLUMBA CAYENNENSIS CAYENNENSIS Bonnaterre: Rufous Pigeon 
Columba cayennensis BONNATERRE, Tabl. Enc. Méth., Ornithologie, vol. 1, livr. 
51, 1792, p. 234 (based on ‘‘Le Pigeon Ramier de Cayenne” Holandre, Abrégé 
Hist. Nat., vol. 2, 1790, p. 214: Cayenne). 
SPECIMENS COLLECTED 
lad. 9, Brazil, Santa Isabel, Rio Negro, October 13, 1930. 
lad. 9, 1lim. 9, Brazil, SAo Gabriel, Rio Negro, January 10-17, 1931. 
lim. o', Venezuela, Brazo Casiquiare, February 6, 1931. 
1 ad. o&, Venezuela, Brazo Casiquiare, near Cafio Pamoni, February 19, 1931. 
lad. &, Venezuela, Brazo Casiquiare, near Cafio Mabinagui, February 20, 1931. 
6 ad. o', 2 ad. co’, lim. 9, 1 ad.-, Venezuela, Puerto Ayacucho, Rfo Orinoco, 
January 5-10, 1930, and May 9-20, 1931. 
One of the May birds was noted as being in breeding condition 
when collected. 
These birds are quite variable, especially in degree of aatenBe c or 
of pallor on the abdomen and flanks. 
