We did this in a Prowler awhile back. Bird zips by, hear "thump." KIO, RTB, land. Maintenance finds a big splat mark on the jet and no damage.I took a little bird square in the windscreen once at night. The spot it made was a little bigger than a softball, mostly yellowish in color, and reminded me of hitting a giant bug on the highway. That same night we found close to a dozen more spots like that on the flaps during postflight.