211 



about 6 white bands ; a band from behind 

 eye round hind neck white, below which is 

 a line of black on sides of neck ; throat 

 chest, ear-coverts and sides of neck buffy 

 white ; sides of breast black, barred with 

 white narrowly ; belly and vent tawny 

 buff ; ? larger and more richly coloured ; 

 sides of head and under parts richer 

 tawny 



311a. Rhynchofalco fusco-ccerulescens femoralis 

 Temm., PI. Col. pi., 121, 343. [Brazil, 

 ex Natterer.] 

 Lesser Aplomado Falcon. 



Smaller ; wing <? 233-243, ? 258-268 mm. ; 

 above more bluish slate ; tail with 

 narrower bars, grey on central feathers 

 and white on outer. 



Venezuela, N. to 

 Cent. America ? 

 S. to Matto 

 Grosso, Brazil 

 (non-migratory) 



t*311b. Rhynchofalco fusco-ccerulescens septentrio- 

 nalis Todd, Proc. Biol. Soc. Wash., xxix., 

 p. 98 (1916). [Fort Huachuca, Arizona.] 

 Northern Aplomado Falcon. 



Larger ; wing ^ 267-280, tail 180 mm. ; 

 wing ? 294-303, tail 201-210 mm. ; plumage 

 similar in colour to typical form. 



Mexico, cas. in 

 Arizona and 

 Texas ; S. in 

 winter to Peru 

 (Marayniyoc). 



Gen. XCVI. lERACIDEA Gould (1838). 

 Type by monotypy Falco berigora V. & H. 



Distance between tips of primaries and tips of 

 secondaries less than half length of tail ; tarsus 

 transversely plated near base of toes, and appre- 

 ciably longer than in Falco. 



