319 
Paraguay , Bolivia, and Southern Brazil. 
The nest is always placed in the lower branches of a 
coronillo tree facing the east, except when built under a 
veranda or summer-house near habitations. 
I have the following note from Miss Runnacles :— 
“ One nest that w r as suspended from a wire under the 
eaves of the house was commenced in the early part of 
November, and when half finished the birds deserted it. 
After a month the pair returned and nearly completed the nest, 
when it was again left, and, finally, at the end of December 
they once more returned, completed the building, laid eggs, 
and brought off the young. They are very fond of human 
habitations and are often seen hovering round the windows 
catching insects, and if flowers are in the room they will 
come in through the windows and doors.” 
The nest is sometimes suspended, sometimes attached to 
the branch; it is deep, cup-shaped, and composed of lichen 
and cobwebs lined with thistle-down, while two eggs are the 
full clutch. 
Eight eggs brought home were taken at Ajo between 
November 12tli and January 18th. They measure: axis 
0*5 to 0*53 inch, diam. 033 to 0*35. 
Fam. Caprimulgid^e. 
140. Nvctiuromus derbianus. 
Nyctidromus albicollis Hartert, Cat. B. xvi. p. 587. 
Nyctidromus albicollis derby anus Ilellm. Nov. Zooh xii. 
p. 297. 
a, b. S. Albuquerque, Brazil. Oct. 1, 1909. 
c. S • Riacho Paraguay Mirin, Brazil. Oct. 2, 1909. 
Irides brown ; bill pale brown; legs and toes plum- 
brown. 
141. Hydropsalis furcifera. 
Hydropsalis furcifera Arg. Orn. ii. p. 15, pi. xii.; Hartert, 
Oat. B. xvi. p. 599. 
a. d ad. Colonia Mihanovitch, N. Argentine. Aug. 12, 
1909. 
