406 MARSH HAWK. 
edged with dull white. he rest of the lower parts are white, the 
feathers generally with several spots of light red along the centre; 
these spots assuming the appearance of transverse bars on the sides 
and legs; the smaller wing coverts are similarly spotted, but those 
near the edge have only a dusky streak, and the secondary coverts are 
barred with dusky. The inner webs of the quills toward the base are 
white, with narrow bars of brownish-black, and the extremities of the 
primaries are as in the adult. 
After a very careful comparison of seven skins of American birds 
with an equal number of European, no essential differences can be ob- 
served. Iam therefore compelled to conclude, that the Marsh Hawk 
of America is the Hen-Harrier of Europe. The following measure- 
ments are obtained from a comparison of eight individuals. 
Amer. Europ. Amer. Europ. 
Ar ee a eS 
M. M. M. M. F. F. F. F. 
Length to end of tail, 192 16 18 181 20% 203 21 21 
tS RAR See ae wings, 162 144 153 — 182 183 183 19 
Extent of wings, . 44 403 40 393 463 453 46 46 
Wing from flexure, . 144,13 1383 18 15; 14% 14; 151 
Tail, Ja ea eg, 96. 8b Sig” SA agama 
Bill along the ridge, . 1,4 1/5 1% tz 18% 1% be 
Tarsus, i , i 2% 2% 23 2% 3% 3% 2% 2% 
‘Hind toe, Fes 2d) 6 Gi og OS By BO ae 
Its claw, 130 a ae Se ae ag ie 
Middie toe, 14-15 YY 16 Bon We is 
Its claw, eee fo te ote te a ah ee 
Anterior tarsal sentella, “17 "18 ; 18 15 19 17.) 189922 
Scutella on first toe, if 6 6 6 i 5 6 — 
SUI ahi dt ohh second, 5 5 5 5 5 5 5 — 
AN, SAY ERT third, TG Es OTS 18 16 eG 
net. Pha RD: fourth, a 8 7 7 nh 8s — 
If measurements of this kind are calculated to throw light on the 
subject, the collectors of skins are welcome to the above, which have 
been made with as much accuracy as possible. 
An adult male examined. On the roof of the mouth are two lateral 
and a median prominent ridge, the intervening space covered with 
