25 



below white with black shaft lines ; juv. 

 below barred ; intermediate plumage below 

 pale ochraceous fawn, as well as sides of 

 face and nuchal collar. 



49a. Micrastur melanoleucus buckleyi, Swann, Ecuador. 

 Syn. List Accip., ed. 1, p. 15 subst. [ad., 

 ^ ?, Sarayacu, Ec. Feb. 1880, Buckley, - 

 B. Mus. coll. No. 87, 5. 1. 122.] 

 Buckley's Harrier-Hawk. 



Much smaller ; wing ^ [?] 217 mm. ; tarsi 

 and feet much smaller and weaker ; white 

 tail bands above partly obscured by brown 

 patches in centre and below less extensive ; 

 those on outer feathers only 4 in number in 

 place of 6 in typical form. 



50. Micrastur mirandollei (Schl.), Nederl. Tijd- Upper E. Peru, 



schr., i., p. 131 (1863). [Dutch Guiana, Guiana, 



type in Ley den Mus.] Panama. 

 MirandoUe's Harrier-Hawk. 



Size medium ; length (2) 17.5 ; wing 248 

 mm. ; above slate ; tail with 3 bands of 

 ashy-brown showing white below ; below 

 white with black shaft hues ; no nuchal 

 collar. 



Gen. XX. CLIMACOCERCUS Cab. (1845). 

 Type C. concentricus = C. gilvicollis. 



Size small ; feet very much smaller ; tarsi more 

 slender, with broad and regular scales in front. 



*51. Climacocercus ruficollis (Vieill.), N. Diet., Central and 



X., p. 322 (1817). [5. America, type in East Brazil, 



Paris Mus.] Paraguay. 



Red-necked Harrier-Hawk. N. Argentina. 



