Thank you!

I reached out to my mother last night as well. She raised rabbits, birds, dogs, skunks, and horses. I would like to share the advice she gave me in case it helps others:

I started this morning adding a small amount (1TBSP) of wet dog food to his kibble food. For now, it is making him excited about his food again and eating it in one sitting rather than over the course of several hours. Then I put the bowl up before bunny comes out.

Last night, after I posted my question, I called mother and her advice worked well for my pair. What was recommended to me worked rather well. I invited Reginald (the dog) Over to me and had him stand while I scratched his chin and chest and sides. Rosco hopped over and went between Reginald’s legs, he didn’t seem phased by the rabbit as long as I was petting him. Bunny did lots of sniffing, a little grooming on one of my dogs legs and then hopped away. I also swapped the dog blanket from his chair and the rabbit blanket from the floor of his pen. She said sometimes exchanging the smells of each animal can get them used to each other much quicker (and with less bunny dive bombing).

This morning, Rosco is still interested in looking for the food bowl, but has ceased to bother Reginald, besides sniffing, while he is on his chair or sleeping. When Reginald is up and walking around Rosco looks like he is trying to instigate some sort of play or chase, but Reginald won’t do much.

I’ll update if anything else changes.