378 Bulletin American Museum of Natural History. [Vol. XXXIV, 
A specimen from the Junction of the Chanchan and Chiguancay Rivers 
(alt. 3000 ft.) is puzzling since it has the long tail of the Temperate Zone 
form and the sides are spotted as in cauce. 
Three males from Mt. Chimborazo and one from Quito have the large 
size and particularly long tail which characterize the Temperate Zone race. 
One of the Mt. Chimborazo specimens is almost unspotted below. 
The others have a few small linear spots on the sides. It is evident there- 
fore that there are two forms of sparverzus in Ecuador, a smaller one with 
heavily spotted sides which inhabits the Tropical and Subtropical Zones, 
and a larger one with longer tail and with comparatively few spots on the 
sides which inhabits the Temperate Zone. ‘The former is near the west 
Colombian race, the latter agrees in dimension with the type of equatorvalis. 
The specimens collected by Rhoads at Huigra and at the junction of the 
Chanchan and Chiguancay Rivers indicate that these two forms intergrade. 
It is most unfortunate that in addition to being without a locality, the type 
of equatorialts should be to some extent intermediate between these two 
Ecuadorian forms. It agrees with the Temperate Zone race in measure- 
ments, but in its spotted sides more nearly resembles caucew. I have, how- 
ever, already given reasons for the belief that to some extent these spots 
are due to immaturity, and it is my opinion that when mature the type of 
equatorvalis would not differ materially from Chimborazo specimens. I 
therefore adopt the name equatorialis for the large Sparrow Hawk of the 
Temperate Zone of Ecuador and southward in Peru. Even should it prove 
to have the sides more spotted than our specimens indicate, and thus more 
closely approach cauc@ in color, it may readily be distinguished from that 
form as well as from ochracea by its large size. | 
Specimens examined.— Ecuador: Quito, 1 %,/1 9; Mt. Chimborazo, 
3 007; Riobamba, 1 o; Chunchi, 1 9; Ambato, 2 99; “Ecuador,” 
1 o (type). : 
Cerchneis sparverius cinnamomina (Swains.). 
Falco cinnamominus Swatns., Anim. in Menag., 1837, p. 281 (Chile). 
Char. subsp.— Very closely related to C. s. australis but male with the subtermi- 
nal tail-band narrower, particularly on the outer rectrix, when it is sometimes obso- 
lete; the tips of the central pair of rectrices rufous, the remaining rectrices more or 
less tipped with rufous; the outer rectrix less frequently with more than the sub- 
terminal bar. 
Range.— Chile (and southern Peru? !). 
et ae hE Ae ao a a sd oe 
' Two males from Cuzco are intermediate between this form and equatorialis but because 
of their rufous tail tips are in my opinion to be referred to the former rather than the latter; 
though it is by no means improbable that they may represent an undescribed race. 
