Spikeandbean
Songster
I'm not sure what the minimum would be - hopefully someone else can weigh in! Personally, I'd go pretty big - 3+ in. cobbles? - if I really wanted to keep them out of it. I've seen people using pea gravel in runs before, so I'm guessing that would be tempting fate.Here is the area I need to eliminate the mulch. They’re coop is a moreless a VRBO, they’re taken care of in that respect and they have access to our tiny yard, we just need to preserve our landscaping as much as possible. Here is a pic of one of the areas I am needing to do rock. I just want to make sure the rock is big enough for them not to scratch out.