BL^BONrn^E. 33 



tail 8.80-10.50, tarsus 2.85-3.25, middle toe i. 20-1. 55. Hab. Whole of North America, 



southward; accidental in Hawaiian Islands. (No specimens in the Museum.) 



58. C. hudson'ius (Linn). Marsh Hawk. 



Genus BUTBO Cuvier. 

 Upper parts, back, head and upper tail coverts blackish brown ; secondaries and 

 wing coverts like the back ; all with paler margins, and with some tawny rusty ; throat 

 white ; sides of breast brown mottled with white ; black shafts to all the dark feathers; 

 abdomen, tibia and under tail coverts white with faint brownish markings; quills 

 blackish above ; from the notch to the base of inner web white with faint brownish bands 

 varying in size and extent ; tail, general color brownish with bands of smoky brown and 

 dull ash-grey. Female: Larger and similar (one specimen shows indistinct bands of 

 brownish and tawny on the wing coverts and back ) . Young: Darker above, more rusty 

 edgings to the feathers of the sides and back of the neck ; throat with narrow shaft 

 stripes; breast and under parts with more brown than white; thighs brown with rusty; 

 iinder tail coverts whitish with cross bars of brown slightly edged with ochraceous 

 rusty. Length about 15.50. Measurements taken from three specimens: Wing 9.50, 

 10.60, 11.75; tail 5.50, 5.60, 6.40; tarsus 2.60, 2.30, 2.60; culmen i.io, 1.25, 1.30; toe 

 1.90, 1.75, 2.10. (The last set of measurements are from the female.) Hab. Hawaii. 

 PL XXVI., 5521. 59. B. solita'rius'" Peale. Hawaiian Hawk, Id. 



Family BUBONI'D^.— Owls. 



Genus. 

 Charadlers as given for the family (Page 33.) Asio. 



Genus A'SIO Brisson. 



Light bands on quills less than ten in number; under surface of quills barred 



across with brown ; tips entirely brown ; face more or less f ulvescent with brownish 



black ; ear tufts short ; ground color varying in individuals from tawny ochraceous to 



buffy white relieved by dark brown stripes; wings mottled with dusky and ochraceous; 



tail ochraceous and buffy ; outer feathers lighter. Young: Above dark sepia brown, the 



feathers broadly tipped with buff; face uniform brownish black; lower parts wholly 



plain dull buffy tinged with smoky greyish anteriorly. Hab. Hawaiian Islands. The 



following measurements seem to justify the separation sub-specifically of the Hawaiian 



form from the larger North American bird : 



Sex. Length. Wing. Tail. Tarsus. Toe. Culmen. 



B. P. B. Museum No. 9,835. S 13.25 11. 15 5.40 1.35 1.60 i.io 



No. 10,067. 9 14.00 11.80 5.50 1.35 1.58 1. 12 



No. 1,284. — 14-25 II-20 5.55 1.38 1.55 1.08 



No. 9,272. S 14.00 11.50 5.45 1.36 1.55 I.IO 



PL XXVI., 9835. 60. A. accipitri'nus sandvicen'sis" (Blox.). Hawaiian Owl, Pueo. 



34 There are some uncertain references to ^'Pandion solUaHui" which are with difficulty reconciled with the habits of the species given 

 above. A fish-hawk {Pandion) may yet be taken in the group. 



35 To correspond with the form usually adopted sandwichensis is changed to sandvicensis. 



Memoirs b. P. B. Museum, Vol. I., No, 3,-3. L^SgJ 



