8 ARKIV FÖR ZOOLOGI. BAND 12. N:0 8. 



21. Sarcoramphus papa L. — 1 ?? (U. Z. M.), C. R., 

 Siquirres, Cano Secco, Aug. 16. 



To obtain some specimen of the «>Rey de los Zopilotes», 

 Dr. BovALLius bought an old mule, that was shot in an 

 open place. After two days the carcass stank enough to 

 decoy the expected guests. In the early morning of the 

 third day a score of the two common species Caiharisia urnhu 

 hrasiliensis and Caihartes aura aura was concordantly ra väll- 

 ing at the dainties. If a hawk approached, it was immedi- 

 ately driven away, Suddenly a King Vulture perched in the 

 top of a high mangotree close by the place. Instantly the 

 feeding, flock was seized with fright, and retired, with the 

 tails dragging on the ground and the heads bent down, from 

 the mule to stumps and stones at a respectable distance. 



Dr. BovALLius remarks, that the King Vulture as a 

 rule is hunting by pairs, and on this occasion, too, two spe- 

 cimens were shot, male and female. 



22. Catharista urubu brasillensis Br. — 1 <^, C. R., 

 Siquirres, Cano Secco, October. 



The Black Vulture was observed here and there in the 

 vicinity of Punta Arenas, C. R. It was common in that 

 town and protected as a useful scavenger. Common at Si- 

 quirres. 



23. Cathartes aura aura L. — Was not observed at 

 the Pacific side. Common at Siquirres, C. R. 



24. Rostrhamus sociabilis Vieill. — 1 $, Nic, Rio 

 Ometepe, Laguna S:ta Rosa, Jan. 1; 1 young (U. Z. M.), 

 Rio San Juan del Norte, March 9. 



Measurements. Female sp. : Wing 366; bill from cere 

 25,5 mm. 



25. Accipiter bicolor schistochlamys Hellmayr. — i $, 

 C. R., Pacuarito, Esperanza, Aug. 12. 



26. Geranospizias niger Du Bus. — 1 (^, C. R., Tala- 

 manca, Sipurio, Aug. 28. 



Carriker remarks (An ann. list of the birds of C. R. etc. 

 In Ann. Carn. Mus. VI. 1910, p. 454), that he believes this 

 bird »to be confined to the Pacific lowlands of Costa Rica, 



