[COLOR=008000]raccoons are known to climb and so can opossums so just[/COLOR]
[COLOR=008000]may not be a hawk......then there are fox who smart as can be.[/COLOR]
[COLOR=008000]Heavy wire, netting and thick boards/wood make a better coop. [/COLOR]
Hardware cloth. ..Anything else can be chewed through. And coons are tricky buggers. :/