Shagbark hickory

[Rob Stafari]

Hello good people. Noticed this shagbark hickory that looks a little poorly. Just curious if anybody has any thoughts as to what may be going on with it. It'll be ok if that one goes, but there's quite a few on the property and would hate to have something that could potentially spread to them all if left unattended. We are right in the middle of ash borer central and already lost an ark load of some pretty magnificent trees. Would hate to loose a whole other family of trees.

Thank you for any insights and/or opinions you may have to offer,
Rob Stafari