Vol. xxxviil. | 44 
strongly marked and extends down to the thighs, and the 
~ whole colour is much richer and darker. Wing 280-293 mm. 
Type, a male from Palal, near Temuco, Prov. Cautin, 
South Chile, collected by A. Saldarna 15/xi./09. B.M. 
Reg. no. 1911 /4/25/58. 
There is a good series of this form inthe British Museum 
from the Cautin and Valdivia Provinces of Southern Chile, 
while birds from Central and Northern Chile north of the 
Prov. Cautin appear to be indistinguishable from the typical 
pale race. 
Micrastur plumbeus, sp. nov. 
Resembling in general colour M. gilvicollis from the 
Amazon basin, but very much greyer above, the crown and 
mantle bluish grey, becoming blacker on the rump and 
tail ; below, the transverse banding extends from the throat 
to the thighs, but not apparently to the under tail-coverts, 
and is composed of alternate bands of white and plumbeous 
rather than white and dusky ; the throat and neck are un- 
banded plumbeous. The tail is very short compared with 
other species of the genus, and has only one cross-band of 
white about the middle of its length, though there are traces 
of another cross-band concealed by the coverts. In the | 
other species of the genus there are always two, often three, 
such bands. 
“Tris light brown to yellowish grey, feet orange-red to 
yellow, bill blackish with a yellowish cere.” 
Type, a male from Carondelet, Rio Bogota, Prov. Esmar- 
aldas, N.W. Ecuador, about 450 feet elevation. Collected 
by Messrs. Miketta and Fleming, 23/ii1./1901. B.M. Reg. 
no. 1902/5/5/62. 
Measurements of type: Length about 330 mm., wing 178, 
tail 125, tarsus 64, bill (without cere, measured straight with — 
dividers) 15. In a female the wing is 167, the tail 120. 
There are in the British Museum two other examples 
from the same district, collected by Messrs. Miketta and 
Fleming. Another younger bird with only the breast 
transversely marked, in the Tring Museum, was obtained 
by the same collectors in the same region. 
