206 THE AMERICAN MIDLAND NATURALIST.- 
legged Hawk. Seemingly an uncommon winter resident. Mrs. 
F. May Tuttle reports a specimen seen at Osage, in Mitchell 
County on Jan. 1, 1915. October 20, 1917, I saw two speci- 
mens in a large linden tree in Brackett’s woods. Webster 
states that he has seen it occasionally, and John R. Waller 
says that he has killed specimens in both light and dark 
phases. 
87. Aquila chrysaetos (Linn.) Golden Eagle. An un- 
common winter resident (Webster and Waller). Specimens 
were shot near Charles City on November 18, 1914, and near 
Nora Springs on November 5, 1915. 
88. Haliaeetes leucocephalus leucocephalus (Linn.) Bald 
Eagle. Webster (Hist. Floyd Co., 1897) states that this= 
species was not rare, and during “early days’ had been quite 
common. Mrs. F. May Tuttle reports a specimen seen near 
Osage, Mitchell County, on March 26, 1914. 
89. Falco columbarius columbarius (Linn.) Pigeon Hawk. 
An uncommon migrant. My only reliable records are: 
September 5, 1913, April 4, 1916, and April 12, 1917. A 
questionable nesting record was given me for 1915. 
90. Falco sparverius sparverius (Linn.) Sparrow Hawk. 
A common species throughout the county, and probably the 
adjoining counties. It arrives in late March or early April. 
May 8, 1915, the species was found nesting in Oak Park, north 
of Charles City, the birds having occupied an old flicker hole 
in a dead linden. In 1917 nests were located in Brackett’s 
woods and Wildwood Park, Charles City, and in 1918 the 
species was found nesting near Rockford. 
91. Pandion haliaetos carolinensis (Gmel.) Osprey. A 
rare migrant (Webster). My only record of the species is a 
single specimen seen near Hackberry Grove on May 28, 1916. 
92. Aluco pratincola (Bonap.) Barn Owl. Rather plenti- 
ful as late as 1881, according to a note made by W. C. Miles, 
and found with his collection. Webster says that, so far as 
his observations show, the species was never more than un- 
common, and disagrees with the Miles record. At present 
the Barn Owl is a rare resident. A pair nested in Charles City 
