Here is a short post about some male rabbit bonding that I have been doing.
Today with my two male rabbits, I put them on their leads and took them into the garden to see how they react near each other in what they would call their territory. They actually were very good around each other, they weren't really bothered and went on doing their own thing with the occasional sniff of each other. If your bunnies are acting like this when you are doing some rabbit bonding, that is a good sign that they are becoming a bit more comfortable around each other.
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If you have anything about rabbit bonding or any questions comment on this post.