How to make a coon dog bark

[xtremecoonhunter]

I've got a male coon dog that runs coon, he is silent on the track and when he gets to the tree all he does is wine. He won't open up and bark. He's a heck of tracker and will stay put on the tree, but will not open up. Any ideas.

[tnwalkers]

You failed to give age or background info on this hound. Hard to offer advice without it. Got me curious now....