1878.] MR. A. BOUCARD ON BIRDS FROM COSTA RICA. 45 



Candelaria Mountains. It was kept in a large cage, and seems quite 

 at home. When you approach it, it erects its crest, and presents 

 then a very imposing sight. 



27. Elanoides furcatus, L. 



One specimen from Naranjo. I saw several in a place cleared for 

 sowing. They sat motionless for hours at the top of the highest 

 trees, probably watching for their prey. 



28. Leptodon uncinatus, Temm. 



Native name " Gavilan." 



One specimen, from Naranjo, April. This bird has a strong cry, 

 which sounds like oua, oua, oua, repeated several times in succession. 

 It resembles very much the cry of the Peacock when asking for rain 

 (as vulgarly said). It is so loud that you can hear it at a long 

 distance. The capture of my specimen was due to it. It was perched 

 on the top of a high tree in the forest ; and if it had not been for its 

 cry, I do not think I should have detected it. Several of these birds 

 were at about half a mile one from the other, and crying in succes- 

 sion ; and it occurs to me that each one takes possession of a certain 

 part of the forest and admits of no intruder. 



29. Cerchneis sparverius, L. 

 Common in all altitudes, January to May. 



Family Vulturid^e. 



30. Cathartes papa, L. 



Native name " Rey de los Zopilotes." 

 Seen at San Mateo in May. 



31. Catharistes atratus, Barth. 



Native name " Zopilote." 



Common everywhere all the year round. 



32. CEnops aura, L. 



Native name " Zopilote de cabeza colorada." 

 San Jose, January to May. 



Ordo Striges. 

 Family Bubonid.e. 



33. Scops brasilianus, Gm. 



Native name " Lechuza." 



One specimen from San Jose. It was perched on a small tree in 

 company with two adult specimens. I killed the young and the 

 female with the same shot. 



34. Lophostrix stricklandi, Sclat. & Salv. 

 San Carlos, Februarv. 



