[Maine-birds] Song Sparrows Imitating Towhees

Evening All

Over the past year or so I've noticed two distinctly different Song Sparrow songs, one of which is very to our Eastern Towhee.

I've also noted that the Towhee imitators are not Song Sparrows that stay over winter with us.

Perhaps our ornithologists have some idea as to why this is the case. Do the Song Sparrows over winter and grow up around Towhees?

Here's a recording I made earlier this week.

Cheers

—mco