Bird Strike requires some ribs and skin.

[cessnadriver]

Gord. Any competent aviation sheetmetal mechanic can repair that damage WITHOUT replacing the ribs! The ribs may require patching with a re-enforcing angle. The leading edge will have a re-enforcing strip around the cut out and an inserted piece of the cut out(replacing the damaged leading edge skin) with a double row of Cherrymax (Blind rivets). Fairly simple repair. As a 20 year US Army sheetmetal mechanic, I've done this type repairs on Army helicopters, as well as fixed wing aircraft. You can check out AC 43-13-1B FAA circular for aircraft repairs AND Cessna structural manual. Hope this info. helps.
Regards, BILLS
'65 C3337, owner/pilot and mechanic