Is This One of the South Loops Falcons?

On Tuesday we had a post about Sloopy, a Peregrine Falcon that was named after the blog.

This prompted a reader to send an email and picture he captured this past winter:

Hey Sloopy,

I know very little about birds, but found this little guy sitting on my railing back in February. Could this be one of the falcons? Sorry for the poor quality camera phone pic.

(Hat tip: MarkChicago!)