Spring song

Song Sparrow - 7/13/07
photo by Cal Vornberger - http://www.calvorn.com
Every year around this time I start taking note of birds that have begun to sing a different tune: their breeding song. Here is Jack Meyer's report from last Saturday, 2/20/10, as it appeared on eBirds:

Besides the bed of snowdrops in Strawberry Fields, there were three singing birds: Song Sparrow on Bow Bridge Island, Cardinal on Cherry Hill, and a half-hearted House Finch near Azalea Pond.