There are numerous Nebraska Harris's Sparrow records in May; actually, peak numbers are seen in early May, although this year the peak migration may have been a bit earlier. The latest consensus records are in early June.
Thanks for posting!
Seasonal Reports Compiler,
Neb Bird Review
From: Carolyn Rieke <bcrieke...> [NEBirds]
Sent: Tuesday, May 09, 2017 6:42 AM
To: NE Birds
Subject: [NEBirds] Harris sparrow
I just had a Harris sparrow in my backyard last evening. I don't think I've had one here before and surprised to see it this late?