484 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 104 



Spizaetus ornatus ornatus (Daudin) 



Falco ornatus Daudin, Traits 6I6mentaire et complet d'ornithologie, vol. 2, 1800, 

 p. 77 (Cayenne). 

 1, unsexed, Caicara, October 6, 1951 (only head and feet saved). 



Although not previously taken in the study area, this magnificent 

 crested eagle-hawk was rare but well known at Caicara. It was not 

 recorded at Cantaura. One raided a farm at Caicara during the 

 months of March and April 1951, carrying off half-grown chickens. 

 The one collected had been eating a full-grown guan {Ortalis ruficauda). 



Spizaetus tyrannus serus Friedmann 



Spizaetus tyrannus serus Friedmann, Smithsonian Misc. Coll., vol. Ill, No. 16, 

 1950, p. 1 (Rio Indio, near Gatun, Canal Zone, Panamd). 

 1 9 , Caicara, January 5, 1952; gonads slightly enlarged, bird very fat; iris rich 

 yellow, feet yellow, nails black; bill black, bluish at base; cere dull green; facial 

 skin black; gizzard contained mammal hair (opossum ? or monkey ?) only, no 

 bones. A fully adult bird in somewhat abraded plumage. 



This specimen is referable to the subspecies serus, but is definitely 

 intermediate between that form and the nominate race of eastern and 

 southeastern Brazil in the preponderance of black over white in the 

 under wing coverts, in which character it is like tyrannus although in 

 size it is serus and in the amount of white barring on the thighs it is 

 intermediate between the two. It is the first truly intermediate 

 specimen seen, but it comes from a locality that is far from intermed- 

 iate. The range of serus as known at present is from southern Mexico 

 to Colombia, Ecuador, Perii, Venezuela, Trinidad, the Guianas, to 

 northern and western Brazil and to Bolivia, while the range of tyrannus 

 is eastern and southeastern Brazil, probably to northeastern Argentina. 

 Our one specimen of the tyrant eagle-hav/k was wounded by Sr. 

 Romualdo Ramos, who, recognizing the rarity of the bird, carried it 

 in alive to the collector. The bird was reported to utter a loud 

 scream, /no-/no. A splendid example of this species was seen quietly 

 perched on a low branch overlooking the Guarapiche River at Carcara. 

 It continued peering intently into the water for perhaps ten minutes, 

 apparently actively following the movements of a school of fish below, 

 but did not attempt to capture one. At close range the feathered 

 tarsi were very evident. Otherwise, at a little distance, the bird 

 could easily have been mistaken for Hypomorphnus urubitinga. 



Circus brasiliensis (Gmelin) 



Falco brasiliensis Gmelin, Systema naturae, vol. 1, pt. 1, 1788, p. 262 (based on 



"Caracara" Marcgravius, Historiae rerum naturalium Brasiliae, 1648, p. 



211, northeastern Brazil = Pernambuco). 



1 (f, Cantaura, July 31, 1950; gonads small; skull not well ossified; iris light 



yellowish brown; bill blue gray with black tip; cere dull blue green; feet rich 



yellow. A very worn bird, in molt in the wings and tail. 



