66 MR. A. BOUCARD ON BIRDS FROM COSTA RICA. [Jail. 15, 



that I did not do so, as I consider this bird one of the most valuable 

 additions to my collection. 



Every day after that I went to the same place and in the neigh- 

 bourhood to look for more ; but I was disappointed, until the day 

 before my departure, when I saw what I think was the mate of my 

 female ; but, to my great annoyance, I could not get a shot at it. 

 It sat for more than two hours, without moving, at the top of a 

 tree more than one hundred feet high, where I could not kill it. 

 It kept me until nightfall with my head lifted up in such a manner 

 that I had a stiff neck when I left. I think it is the greatest punish- 

 ment for a naturalist to be looking at a very rare bird above his 

 head for several hours without being able to get a shot at it. 



"When I went away I recommended the people living in the rancho 

 to kill some specimens for me. I offered them a high price ; but all 

 for nothing : they said they never saw another. If it was not neglect 

 of theirs, this must be a very rare bird indeed. 



221. Chasmorhynchus tricarunculattjs, Verr. 



One specimen from the Volcano of Irazu, January. This seems 

 to be a rare species. My specimen was killed at the altitude of 

 6000 feet. 



222. Cephalopterus glabricollis, Gould. 



San Carlos, February ; Volcano of Irazu, May. This singular bird 

 is found at all altitudes up to 10,000 feet in the forests. Were it 

 not for its cries it would be excessively difficult to detect, as it 

 always keeps in the densest parts. Its cry is something extraor- 

 dinary. When I heard it first I thought it was a new species of 

 Crax or some other similar large bird. Being very anxious to see 

 what it was, I went into the forest ; and after a great deal of trouble 

 I found it. They perch rather high, but are easily killed when 

 once found. 



Family Piprid^e. 



223. PlPRA MENTALIS, Sclat. 



One specimen from San Carlos, February. Perches usually low, 

 and keeps in the forest. 



224. Pipra leucorrhoa, Sclat. 

 Cervantes, Naranjo. 



225. Chiroxiphia linearis, Bp. 

 Several specimens, from Navarro, May. 



226. Chiromach^eris cand^ei, Parz. 



One specimen, from San Carlos, February. Perches on the small 

 trees in the forest ; and the male has the particular habit, as have 

 some other species of Pipridae, of making a great sound when flying 

 from one branch to another. It imitates exactly the sound produced 

 by the children's toy rattle. I think this noise is produced by its 



