ERRATA ET ADDENDA. 
Page 9, Gen. X.—After auvicularis insert ‘‘ Daudin.”’ 
Page 28, No.56b.—After this article insert : 
56c. Gevanospizias c@rulescens livens Bangs & Penard, N.W. Mexico. 
Proc. Biol. Soc., Wash., xxxiv., p. 89 (1921). 
[Alamos, State of Sonora, type in M.C.Z., Harvard.] 
Wing ¢ .34, 9 349 mm.; paler, not blackish, but 
neutral grey; larger and darker than G. c. c@ru- 
lescens. 
Page 33, No. 64e.—To distribution add: “‘ probably breeding N. of United States.” 
For discription read: ‘‘ much darker grey (blacker) and generally fogged with 
blackish. Juv.: very brownish, with the whites dull and rather ruddy.”’ 
Page 37, No. 71.—For wing measurement read ¢ 145-155, Q 180-182 mm. 
Page go, No. 156a.—For this article read : 
Asturina plagiata micyus Miller and Griscom, Am. Nicaragua, 
Mus. Novitates, No. 25, p. 4 (Dec. 7, 1921). [Chin- Costa Rica. 
andega, Nicaragua, type in Am. Mus. N.H.] 
Page 93, No. 157i.—For this article read : 
Rupornis magnivostris puchervant J. & E. Verr., Rev. 
et Mag. de Zool., 1855, p. 350. (Paraguay, apud 
Chubb. | 
> 
Page 103, No. 175.—For “ Chauchamayo”’ read “ Chanchamayo.” 
Page 165, No. 263.—l am unable to accept Ictinia plumbea vagans recently described 
by Miller & Griscom (Am. Mus. Nov., No. 25, p. 5, Dec. 7, 1921—Pena Blanca, 
Nicaragua), as it is based on larger size only and has not a definite range. It 
is presumed to breed in both Central America and S. America. My smallest 
bird is from Guatemala (wing 287 mm.) and my largest pair from Ecuador 
(wing 293-300 mm.). The examples with wings of 300-319 mm. are not confined 
to Central America, and the largest bird measured by Miller & Griscom is from 
Matto Grosso. Most of the g examples from the latter locality are placed under 
the typical form, and most of the 8 examples under vagans ! 
Page 164, No. 262b.—Miller & Griscom (ctt. supva, p. 13) think Chubb’s characters 
are insufficient to distinguish leone from mervidensis Swann. In an errata slip 
they retain leone as the older name, to include the Venezuelan and Guianan 
birds. I think, however, that Nicaraguan birds are undoubtedly larger than 
Venezuelan and that both races may stand, /eon@ being the name for the Central 
American race. 
