1853.) 307 
disposed to act on the offensive. I hada fine red-shouldered hawk in the same 
aviary, which the ow! killed and ate the second night. 
Buso susarcticvus, Hoy. 
This winter vistor I consider closely allied, yet distinct from the common 
horned owl, and as such it is described in the Proc. Acad. Nat. Sci. vol. vi. 
page 211. Ihave as yet examined but three specimens. The specimen in the 
collection of the Academy was known to carry off from one farm, in the space 
of a month, not less than twenty-seven individuals of various kinds of poultry, 
before it was shot. 
SYRNIUM CINEREUM, Linn. 
Not numerous. 1! have a fine male specimen, shot near Racine, Jan. 4, 1848. 
A remarkable peculiarity of this specimen was, that the irides were drélliant 
blood-red. saw one sieze and carry off a duck on Lake Superior, near the 
mouth of Cerf river, Sept. Ist, 1845. 
*SYRNIUM NEBULOSUM, L727. 
Common in the heavy timbered districts. 
*Orus VULGARIS, Aud. 
More numerous in the vicinity than any other owl. The young leave the nest 
about the middle of June. 
*Orvus BRacHYotTus, Linn. 
Common on the prairies, where they nest on the ground, in the tall grass. The 
young are fully fledged by the second week in June. 
*NYCTALE ACADICA, Gmel. 
Common. 
NycraLte TrenamMaumi, Gmel. 
| procured a single specimen near Racine, Nov. 30th, 1850. Not uncommon 
on the head waters of the Wisconsin river. 
NycraLte Kirttanpi, Hoy. 
A third species of this genus, found here, and described in the Proc. Acad. 
Nat. Sei. vol. vi. page 210. 
Only two specimens have yet been observed. 
SLRIX FLAMMEA, Linz. 
A fine specimen of this handsome owl was obtained this spring by my friend 
the Rev. A. C. Barry, of this city. It was shot near this city, and is the only 
specimen which has come under my observation. 
CAPRIMULGID&, (2 species.) 
* SNTROSTOMUS VOCIFERUS, Wilson. 
Common. Arrives about the lst of May, departs middle of September. 
*CHORDEILES VIRGINIANUS, Briss. 
Numerous. ‘They leave us by the 15th of September. On the 10th of this 
month, 1850, for two hours before dark, these birds formed one continuous flock, 
moving south. They reminded me, by their vast numbers, of passenger 
pigeons, more than night hawks. Next day not one was to be seen. 
HIRUNDINIDA:, (6 species.) 
*“PROGNE PURPUREA, Linn. 
Coinmon. 
*HiRUNDO AMERICANA, Wilson. 
Numerous. 
*Hirunpo FULVA, Vievdl. 
A few nested for the first time at Racine in 1852. Numerous in many parte 
of the State. — 
