Mystery Bird

This little bird has been hanging out at our bird feeder lately, driving us all crazy. We couldn't for the life of us figure out what it was!! It is a bit smaller than a robin, and has similar coloring to a sparrow. The boys have been through every bird book we have and were ready to give up, when I heard a little snip it on the radio about rose breasted grosbeaks (of which we have seen a few males) and their brown, sparrow-colored females!! So there you go - in case you have ever wanted to know what a female rose-breasted grosbeak looks like...(I know, you have all been dying of curiosity!!)