302 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 
Nyctipolus nigrescens (Cab.)- 
Caprimulgns nigrescens Cabanis in Schomburgk Reisen. Brit. Guiana 
III: (1848): 710 (Brit. Guiana): Hellmayr. Novit. Zool. XVII: 
1910: 381 (Caura. \'enezuela). 
Nvctipoliis nigrescens Ridgway, Proc. Biol. Soc. Wash. XX\^: IQ12: 
p. 198. 
There are three specimens in the American Museum collection from 
the Caura River ; two from La Union and one from Suapure. 
Chordeiles AcuTiPENNis ACUTiPENNis (Boddaert). 
Caprimnliius acutipennis Bodd., Tabl. PI. Enl. 1783. p. 46. 
Chordeiles acutipennis Berlepsch & Hartert, p. 90. 
Not uncommon. Taken at Altagracia, Quiribana de Caicara and 
at Maipures. 
A nest of this species was found at Raton Island about midway 
between Maipures and the mouth of the Vichada River. The nest, or 
better, nesting site, was a mere slight hollow near the centre of one of 
the enormous flat-topped granite boulders that are so common along the 
Orinoco. The colors of the sitting bird blended almost perfectly into 
the colors of the surroundings and I would not have discovered her 
had I not flushed her by almost putting my foot upon her. The color 
of the eggs was also decidedly protective. The eggs were taken Feb- 
ruary 1st and were entirely fresh. They are nearly elliptical-oval in 
form, being scarcely noticeably smaller at one end than at the other. 
The ground color is a pale vinaceous buiif and over the entire surface 
are thickly scattered small, faint, ill-defined markings of greyish under- 
lying others of pale ra,w umber. They measure 24.75 ^ 19-25 and 25 x 
19.25 mm. 
X.\XNOCHORDEILES PUSILLUS SEPTENTRIOX.^LIS Hellm. 
Chordeiles piisilliis Gould, P. Z. S. 1861. p. 182. 
Nannochordciles pusilhis Berlepsch & Hartert, p. 90. 
N[atmochordeiles] piisilliis septentrionalis Hellm., Novit. Zool. XV: 
1908: p. 78 (Type ex Maipures). 
Observed at Maipures only, where two specimens were collected on 
my first expedition, one in December, the other in January. 
