Ok. WHAT THE HECK!! RABBITS DYING!!!

[cassie]

Since they have access to the ground cocci is a real possibility. Have a fecal done and you will know for sure.

 

[chickens really]

Was the wood pressure treated?

 

[Rietta]

Another Option entirely is literally scared to death... a predatory animal cat or even dog can cause sudden heart attack and death. That being said, do check the droppings for diarrhea.