229 
*324a. Cerchneis isabellinus ochracea Cory, Field Venezuela, 
Mus; Pub: Orn. Ser., 1.,.p. 298 (1915). (Merida, Colon, 
[Colon, Tachira, W. Venez., type in Field Valle, Ohama, 
Mus. | Montana de la 
Venezuelan Kestrel. Sierra, Cutata, 
Margarita I.) ; 
Wing ¢ 178-184, tail 127 mm. ; @ wing 190- N.E. Colombia, 
196, tail 133 mm.; g above darker rufous, Andes region of 
with only a few black spots and bars ; head Colombia. 
blackish slate with no rufous patch when 
adult ; primaries barred right across inner 
webs ; tail with broader black subterminal 
band (25-30 mm.) ; below decided rufous 
cinnamon, unspotted in ad. (less mature 
with a few black spots on sides); 2 and 
juv. 3 isabelline rufous below with dark 
brown streaks and spots; crown with 
more or less rufous. 
324b. Cerchneis isabellinus brevipennis -Berl., Curacao, 
Oe ISS22 pr Ils euvacao. | Bonaire, 
Curacao Kestrel. Aruba Is., off 
Venezuela. 
Wing yshorter >; Gave, 165, 9 175. mm.; 
similar to last form but with a greater 
tendency to banding above and to heavy 
black spotting below in less mature birds ; 
ad. 3 below isabelline rufous unspotted ; 
tail band av. 25 mm. [Barely separable 
form. | 
1 C. 1. intermedia Cory (Field Mus. N. H. Orn., 1., p. 325 (1915), seems to be 
non-separable. The average wing of his examples is the same as the measurement 
of his type of ochvacea; the narrower band on the tail seems scarcely a reliable 
distinction, while the white spotting on outer webs of primaries is a very variable 
character. C. 1%. margaritensis Cory (T. c., p. 297), Iam also unable to distinguish, 
as examples with the paler under parts occur in the Merida district along with the 
darker birds. His C. 2. perplexa (t. c., p. 327) 1 am unable to distinguish, dark and 
pale-breasted birds occurring together as I have before pointed out; while C. i. 
distincta (t. c., p. 297) is most certainly typical tsabellinus, the principal character, 
the obsolete bars on inuer webs of primaries, being present in Brit. Guiana examples. 
