There has been a lot of rain lately and I'm worried that with the soft ground, a predator may be able to dig under and get into my coop. All of my roosts are between 3 and 6 feet off the ground. I couldn't find any info in the forums about how high is high enough, just in case something gets in at night. So, can possums or coons jump? are my birds safe at 3+ feet off the ground? Or should I make the roosts higher just in case something gets in? Thanks!