concerning the Birds of Massachusetts. 93 
might be satisfied from the settled character of the plumage, 
whether this bird deserves or not the rank of a distinct 
species ? 
Falco islandicus. Tem. F. islandicus candicans. Laru. Ind. 
Orn. I. p. 32. No. 69. In the course of the present winter in 
the months of January and February, one of these celebrated 
White Jerfalcons has been frequently seen in the vicinity of 
Fresh Pond in Cambridge. 
Falco Harlani, Avpuson, or (Black Buzzard.) This species 
was discovered by the author during his last collecting excursion 
in the mountains of Pennsylvania. It appears to be of about the 
size of the Red-tailed Hawk or Buzzard, almost wholly, both 
above and below, of a fine purplish black, and is readily distin- 
guishable from Wilson’s Black Hawk, or St. John’s Falcon, by 
the unfeathered tarsus. Has this remarkable species yet been 
seen in any part of New England 2 
Falco Stanleyi, Aupuzon. pl. This is another Buzzard, bear- 
ing some resemblance to the young of the Red-tailed species, 
(F. borealis.) It is, however, perfectly distinct, and approaches 
nearer to the Buzzard of Pennant’s Arctic Zoology, No. 103. 
vol. I. p. 241., which is certainly not the Buzzard of Europe, 
hitherto unknown in America. A bird nearly related to this of 
Audubon, which I have consequently termed Falco *buteoides, is 
not unfrequent in this Vicinity, and known, with several others, 
by the name of Hen-Hawk. It is wholly dark brown, spotted 
more or less with white or brownish white, of which latter color, 
diversified with oblong dark spots, is nearly the whole under side 
of the body ; the femorals are marked with hastate spots. The 
wings are shorter than the tail, the latter rather obscurely barred 
(in the male) with nine or ten dusky confluent stripes. The legs 
19 
