Peregine Falcon in Burke, Va

Today I glanced out the window from the back of my house and noticed a large bird land
on the branch of one of the trees. I looked closer using my binoculars and I think it was a peregine falcon (http://en.wikipedia.org/wiki/Peregrine_Falcon). It was really exciting to see such a magnificant bird almost in my back yard!

I wish I could've taken a picture of it but it basically looked like this:

http://www.google.com/imgres?imgurl=http://animals.nationalgeographic.com/staticfiles/NGS/Shared/StaticFiles/animals/images/primary/peregrine-falcon.jpg&imgrefurl=http://animals.nationalgeographic.com/animals/birds/peregrine-falcon.html&h=450&w=365&sz=29&tbnid=nB6VTpLGic4TWM::&tbnh=127&tbnw=103&prev=/images%3Fq%3Dperegrine%2Bfalcon&usg=__fKI6MGaqWzqNrx_qbNGph4U3xro=&sa=X&oi=image_result&resnum=1&ct=image&cd=1