I agree with Tonibun. Outdoor bunnies are always at risk of predators, as well as extreme temperatures, and are at higher risks of health conditions such as GI stasis going undetected for longer which is often fatal. Is it possible for you to house your bunnies indoors instead? At the very least I’d recommend a shed for safety and health purposes, if your bunnies has to be outside, as hutches are far too small for rabbits and do not provide them with enough mental or physical stimulation. Rabbits are extremely intelligent animals and need their mental and physical needs to be met which 99% of hutches alone do not allow for. Please do as much research as you can into sufficient housing for rabbits, diet (80% grass hay) and health conditions which commonly affect rabbits such as GI stasis as early intervention and prevention is key.