Errata et Addenda. 



Page 5, No. 6. — For " californicus " read " calijornianus." 



Gen. VI. add : Type by monotypy Falco serpentarius Miller. 



Page 8, No. 13. — -In description, line 2, for " back " read " black." 



Page 9, No. 14b. — ^For " Gymnogyps " read " Pseudogyps." 



Page 12, No. zi. — For distribution read: "Northern S. America" only. 



After this article add : 



2iaa. Polyborus cheriivay auduboni Cass. Pr. Philad. Acad. S. United States, 

 1865, p. 2. {Texas.] Cuba, Mexico, and 



Central America. 

 Larger ; wing ^ 390-400 mm. (as against 360 mm. 

 in S. American form) ; plumage browner ; under 

 tail-coverts white, with a few dark bars only. 



Page 15, No. 30. — For distribution read : — 



For description read : 

 Wing ^ 296, ^ 295-305 mm. ; above blackish brown, 

 with slight paler edgings ; behind eye each side a 

 black stripe ; head and hind neck buff, streaked 

 with pale brown ; upper tail-coverts and basal two- 

 thirds of tail buf&sh white, with about 7 blackish 

 bars on tail ; apical third of tail black ; below deep 

 to pale ochraceous buff according to age. Juv. : 

 head, neck and under parts dark brown, latter heavily 

 striped with whitish. 



Paraguay, 



N. Argentina (Chaco 



dist.), S. Brazil. 



Page 15, No. 30a. — For distribution read : — 



For " Not seen " read : 



Wing ^ 300 mm. ; above browner than in M. c. 

 strigilatiis ; head and under parts, especially under 

 side of wings, warm buff instead of white ; base of 

 primaries with narrow blackish bars. 



Panama, Colombia 

 to Brit. Guiana. 



After this article add : 



30b. Milvago chimachima strigilatiis Spix., Av. Bras., i., E. and Central 

 p. 10 and pi. [juv.] (1838). [River Xingu.] Brazil, N. to 



White-breasted Caracara. Amazonia. 



Smaller ; wing ,^ 265, ^ 280-290 mm. ; above 

 blacker ; basal half of primaries pure white, without 

 bars ; head and hind neck huffish white ; upper tail- 

 coverts and basal two thirds of tail white, the bars 

 more or less obsolete ; below pure white. 



