398 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



35. Myrmeciza immaculata Scl. & Salv. (?) 



[Note. — The female from La Palma is referred doubtfully to this 

 species. It differs markedly from three other Costa Eican specimens, 

 from the Atlantic coast, in having the jugulum and breast bright chest- 

 nut instead of dull chestnut-brown, but I am unable to detect auy other 

 differences. — R. E.] 



Kot common. Only one specimen seen, and that was secured near a 

 running stream. 



No. 286. 9 ad. April 29. 



36. Amazilia fuscicaudata (Eraser). 



Abundant. The period during which I collected at " La Palma" being 

 the latter part of the dry season, most of the birds had gathered in the 

 vicinity of the water courses. The Humming-birds seemed to be espe- 

 cially affected by the drought, but knowing that the Trochilkkv had 

 been especially well worked uj), I preferred to devote my time to groups 

 more likely to yield novelties. 



One specimen. 



No. 303. 9 ad. April 27. 



37. Nyctidromus albicollis (Gmel.). 



Exceedingly abundant in the vicinity of La Palma, where five or six 

 may be heard at the same time. The Spaniards give it a name signify- 

 ing ''bird of the night." 



Frequently in passing through the thick brush I have flushed this 

 bird. It would flit silently ahead a short distance, and then apparently 

 alight on the ground ; but upon reaching the spot I would find that, 

 like the "Irishman's flea," it was not there. Upon closer observation 

 I found that the bird did not really alight when it appeared to, but 

 Avouid suddenly descend to the ground, over which it would hover for 

 an instant as if in the act of alighting, and then glide silently on close 

 to the ground for some little distance, and finally settle down in the 

 dead leaves near a tree-trunk or bush. 



One specimen. 



No. 201. 9 ad. April 16. 



38. Campephilus guatemalensis Hartl. 



Common. This handsome Woodpecker was not seen during the early 

 part of my stay at La Palma, but it suddenly became quite common 

 about the 27th of April, and from time to time until my departure. One 

 of the commonest sounds of the forest was its quick, loud tap. It usu- 

 ally taps but twice in rapid succession, hunts in pairs, and seems to 

 prefer the thick forests to the more open woods. 

 Five specimens secured. 

 No. 271. 9 ad. April 27. 

 No. 272. $ ad. April 27. 

 April 28. 

 April 28. 

 April 29. 



