116 



men and tibise slightly darker ; the bars on the under side of tail, 

 except the subterminal, almost obsolete. 



' Buteo insignatus, No. 6,871. Upper parts very similar to Haiiani^ 

 No. 13,228, but with the longest upper tail coverts barred with white, 

 shaded towards the tips into dull slaty white ; tail rather lighter ; under 

 parts similar, but with more rufous on the margins of the feathers, less 

 rufous in the barring of lower part of abdomen ; crissum white, barred 

 with light wood-brown. 



No. 5,576. Sunilar to last, but with the margins of scapulars and 

 tertiaries, and feathers of hind-neck rufous ; throat nearly white, with 

 only a few black lines ; upper part of neck brownish, gradually shaded 

 into brownish-ferruginous, each feather with the shaft black, this 

 color extending somewhat into the webs, principally in the centre of 

 abdomen ; tibiae and lower abdomen obsoletely barred ; crissum white, 

 with a few bars of pale rufous. 



Buteo Swainsonii, No. 5,157. Upper parts intermediate between 

 No. 6,871 and No. 5,576. Below, with throat white ; upper part of breast 

 and fore-neck with the feathers wood-brown, some of them quite faded 

 and more or less margined with rufous, but with the brown predomi- 

 nating ; flanks and abdomen, rufous streaked and spotted with blackish 

 brown ; lower part of abdomen and tibise bright rufous, barred with 

 lighter ; under tail coverts white, soiled with rufous, but without any 

 distinct bars, except a few obsolete ones near the tips. 



No. 8,540. Has the rufous margin of the feathers of the upper 

 parts still broader; upper tail coverts lighter and more distinctly 

 barred ; the breast like the last, but with the rufous predominating, 

 the centre of the feathers only being brown, extending over nearly 

 the whole web on the upper part of neck, and gradually becoming 

 narrower on descending tiU it is only seen on the shaft. IMiddle of 

 abdomen nearly white, shaded as it were into the dark color of the 

 breast by spots and bars of rufous and brown, which become less 

 frequent towards the thighs ; vent and abdomen white, slightly soiled 

 with rufous ; tibiae of the same color, barred indistinctly with pale 

 rufous ; crissum sHghtly soiled white. 



No. 17,674. Upper parts more rufous and the margins of the 

 feathers still lighter ; the bars, on the outer surface of the primaries 

 obsolete, and very indistinct on the tail, which is hoary on the outer 

 feathers and white at the base. Below, with the throat white, fore- 

 neck and breast dull hoary-ferruginous, with the shafts of the feathers 

 blackish-brown ; rest of under parts white ; flanks and upper part of 

 abdomen, with the feathers barred very indistinctly in the centre of 

 the abdomen, and gradually more distinctly towards the flanks and 

 breast with brown, and with the shafts also black where they are 

 barred. This specimen is a particularly good one to show that slight 

 differences of the primaries are not to be considered of any impor- 



