There are 4 Groen Brothers Aviation Usainc SPARROWHAWK II aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2007 and 2009.
N787PT
2009 Johnson Shawn A SPARROWHAWK II
Joliet, MT
N3013H
2008 Boyle Steve J SPARROWHAWK II
Largo, FL
N622SH
2008 Genotte James R SPARROW HAWK II
Momence, IL
N58JW
2007 Wade Jim SPARROWHAWK II
Milwaukie, OR