Harris's Sparrow in Denver on 3/4/17

[Jason Bidgood]

Yesterday I spotted a Harris's Sparrow on the south end of the Westerly Creek open space in east Denver (Stapleton).   Someone saw the eBird post yesterday and was able to re-find it and get a photo to confirm it.  Here is my eBird post with the directions:    http://ebird.org/ebird/view/checklist/S34953370.  It was east of Beeler Street at about 23rd Ave.  I bird this area often and I thought I saw a Harris's in this same spot back in November but I didn't get a great look at it.   I wouldn't be surprised if it spent the winter here.  Can anyone tell me if these are "rare" here year-round?