Thursday, April 17, 2014

Apr 14, 2014: Field Sparrow

Note the white eye-ring, gray face, and pink bill of this Field Sparrow, which was found along the Upland Trail.  They nest in Iowa.  Their song is a repeated clear whistled note on one pitch that increases in rate (like a dropped ping-pong ball) until they make a trill. 4/12/14 (Wolf. Oesterreich)

No comments:

Post a Comment