FAMILY ACCIPITRIDAE 247 



Females (5 specimens), wing 450-477 (464), tail 373-407 (381), 

 culmen from cere Z^.7-Z7.7 (36.0), tarsus 108.1-116.2 (113.4) mm. 

 Resident. Rare, in regions of heavy forest. 

 The available records are as follows : 



Chiriqui : Boquete, Mar. 15, 1960 (sight record, Wetmore). 



BocAS DEL ToRO: Changuinola, Banana River (Peters, Bull. Mus. Comp. 

 Zoo!., vol. 71, 1931, p. 309). 



Cocle: Head of Rio Guabal, Caribbean slope (sight record, Wetmore). 



Canal Zone: Lion Hill (taken by McLeannan, specimen in British Mu- 

 seum) ; Barro Colorado Island, March 30, 1936 (specimen in American 

 Museum of Natural History), Feb. 8, 1950 (dark phase), and May 5, 1953 

 (sight records, Wetmore). 



Panama: Quebrada Carriaso on Pacific slope of the Cerro Azul (head 

 waters of Rio Pacora) ; dark phase, April 25, 1949; Chepo, March 18, 1911. 



Darien: Mouth of Rio Imamado on the Rio Jaque, April 8 and 11, 1947 

 (dark phase; sight records, Wetmore). 



Comarca de San Blas: Perme and Puerto Obaldia (Griscom, Bull. Mus. 

 Comp. Zool., vol. 72, 1932, p. 315) ; male and female, Puerto Obaldia, Dec. 

 10, 1931, and March 28, 1932 (specimens in Brandt collection, University 

 of Cincinnati); Puerto Obaldia, Feb. 17, 1963 (sight record, Wetmore). 



Isla Coiba: Jan. 15 and 22, 1956 (sight records, Wetmore). 



As this is a species that lives in tall forest, it is seen mainly by 

 chance, and probably it is more common than the few records in- 

 dicate. In my own experience I have observed it at Boquete soaring 

 high over the valley, when the long tail and short wings served to 

 identify it at sight. This is the only report for Chiriqui at present. 

 On Isla Coiba one rested on an open perch below the top of a tall 

 tree, where it was seen first by the keen eye of Vicente, my com- 

 panion. It perched quietly, with raised crest. Others were seen here 

 soaring high over the forest. 



On April 25, 1949, my last day afield for that season, I had gone 

 up the Rio Pacora into the eastern part of the Cerro Azul and had 

 continued higher on foot along the Quebrada Carriaso, to an ele- 

 vation of about 350 meters, in an area that at the time was little 

 troubled by human intrusion. I noted tracks of tapir, deer, and 

 jaguar at intervals along the stream, and smaller forest creatures 

 appeared in the undergrowth and in the trees. Toward noon I 

 found it necessary to return to meet my companions at the jeep, 

 left near the main river. But first, reluctant to leave, I tried calling 

 once more. A few small birds were attracted, then a hummingbird, 

 and then this beautiful eagle came swiftly into a little open space 

 above me, circled expertly, opening and closing the long tail, and 

 then smashed through slender branches to a perch only 12 meters 



