Singing of the Female State-Colored Fox Sparrow
Journal
Condor
Volume
12
Issue
2 (March-April)
Year
1910
Pages
80
Online Text
Singing of the Female Slate-colored Fox Sparrow.
On April 17, 1909, I was watching a pair of Slate-colored Fox Sparrows in a willow thicket near Bozeman, Montana. At first I believed, from their actions, that the birds were mating, but later, when I notist that both birds sang alternately, I decided that they must be rival males. The songs were very similar in every way except that one was somewhat weaker than the other. I finally secured the bird with the weaker song and was much surprised when, on later examination, it proved to be a female.
