115 



variety that I have seen,) from caluriis, one species, the ferruginous 

 variety from Fort Tejon, — and, by adding to this group one species 

 based on the adult Harlani of the Academy, making in all seven dis- 

 tinct species. I have not included in this list the young Harlani of 

 the Academy, which differs as much from the adidt as from any other 

 specimen of this group ; or Cooperi, as they are both from New 

 Mexico, a region that has been but little explored, and is on our 

 extreme Southern frontier ; and though I think it more probable that 

 they are only varieties of borealis, still, as there is but a single speci- 

 men of each known at present, it will be wiser to wait until future 

 explorations shall have increased their number before attempting to 

 decide this point. (See table on page 114.) 



BUTEO HARLANI. 



Buteo Harlani, No. 13,228. Above, dark brown, glossed with pur- 

 ple, deepest on the interscapular region, and lightest on the head, 

 with the centre of all the feathers darkest and the shaft black ; base 

 of the feathers of occiput and hind-neck white ; some of the wing 

 coverts and scapulars narrowly margined with dark rufous ; upper 

 tail coverts grapsh-brown, barred with dark brown, base more or less 

 white ; tail dark ash-brown, the central feathers brown, with eight or 

 nine bars of blackish-brown, the last being broadest. Primaries with 

 their exposed portions deep blackish-brown, with a purple lustre and 

 without bars. Below, same color as above, but duller, except the 

 tibige and lower part of abdomen, which are barred with bright 

 rufous and dark brown ; crissum pale rusty-white, barred slightly with 

 ferruginous-brown ; under surface of the tail light grayish-ash, barred 

 with brown, the bars growing indistinct towards the base ; under 

 wing coverts pale rusty-white, marked with ferruginous. No. 

 19,120 has the color of the upper parts nearly similar to No. 13,228, 

 but with the margin of the feathers more (h* less rufous, most 

 pronounced on the hind-neck, and the upper tail coverts white, 

 barred with brown ; the centre of primaries obsoletely barred. Below, 

 with the throat similar, upper part of breast and abdomen dull fer- 

 ruginous, with the shafts black, and the feathers washed with slaty- 

 brown, as they approach the throat, principally in the centre ; middle 

 part of abdomen rufous, spotted with brownish purplish-black, the 

 spots broader and most conspicuous on the sides ; lower part of abdo- 

 men and inside of tibia, barred with rufous and white, most narrowly 

 on tibiae ; outer surface of tibiae the same tint of ferruginous as abdo- 

 men, with the shafts dark and the margins lighter, as if faded. 

 Crissum white, with a few pale rufous-brown bars, not extending 

 across the webs. 



No. 6,455. Upper parts similar to No. 19,120. Below, with the feathers 

 of the breast rather darker and of the abdomen dark brown, with 

 their margins rufous, forming a broad dark band ; lower part of abdo- 



