Oldham Athletic are keen - joining a speculative list that already includes Charlton, Coventry, Leyton Orient and Peterborough United - and Gunn believes, whether City opt to cash in or current boss Paul Lambert aims to give McDonald a shot at the Premier League, the Canaries are in a great position.
"It will be down to Paul, but he is certainly one of those where if he is still at Norwich you would have him on the bench because he could get you a goal late in the game," Gunn told the Pink Un. "I think he's still developing and still learning - there is plenty for Cody to learn and if he was back at Norwich for a full term he could do that. And if he does go out on loan or if there is a transfer in the making, I'm sure he will do a good job for whoever. I think he is a really valuable asset, considering he only cost £25,000.
"He's a typical striker. He will work hard for his team-mates and if you give him a chance at whatever level, he will score a goal. He is just one of those natural goalscorers, he finds himself in the right place - as he proved last year."