120 Mr. J. H. Gumey's Notes on 



young bird in the Norwich Museum the rufous thighs are 

 crossed by two bars of dark brown. 



Messrs. Salvin and Godman possess a specimen in course 

 of change from the immature to the adult dress, in which the 

 newly assumed grey flank-feathers adjacent to the tibiae are 

 slightly tipped with rufous, like those of the thighs. 



Of the three species of the genus Harpagus, the most widely 

 spread geographically, and, so far as I have observed, the most 

 variable in plumage, is H. bidentatus, which is found in Brazil, 

 Guiana, and Trinidad, and, on the opposite side of the con- 

 tinent, in Peru and Ecuador, also extending northward to 

 Venezuela and Panama, from both of which localities the 

 Norwich Museum possesses an adult red-breasted specimen. 

 Leotaud, at p. 29 of his work on the Birds of Trinidad, 

 speaks of the iris in H. bidentatus as yellow ; but this does not 

 agree with the testimony of other observers. Prince Maxi- 

 milian gives the following particulars in his article on this 

 species^: — "Iris bright cherry -red or light blood-red ; cere 

 greenish yellow; lores and eyelids pale blue-grey; legs 

 orange-yellow, feet rather paler; a young female had the 

 irides and feet paler and the lores and eyelids a lighter blue 

 than in the old bird, in which they are tinged with yel- 

 lowish.'^ 



Tschudi describes the iris as blood-red f^ and d'Orbigny as 

 pale red J. 



An adult and very red-breasted female from British Guiana 

 in the collection of Messrs. Salvin and Godman is thus noted 

 by the collector, Mr. H. Whitely : — " November 27. Upper 

 mandible black ; lower mandible light slate-colour ; eye pink; 

 legs and toes light chrome-yellow.^'' 



The immature plumages of H. bidentatus exhibit varia- 

 tions of coloration which appear to me to be probably syn- 

 chronous and individual, and not to mark successive stages ; 

 these variations may be illustrated by a reference to the 

 undermentioned specimens. 



No. 1. (Collection Salvin and Godman.) This is the 

 * Beitr. Orn. Bras. vol. iii. Abtli. 1, p. 132. 

 t Faun. Peru. p. 107. J Voyage, Ois. p. 122. 



