Wow, thank you Anke.
Really helpful advice, really is appreciated. It's a learning curve lol.
At the moment they feed exclusively on pasture. They used to also have access to hay all year round in the past, as they had limited and low quality pasture. Now though, they have 2 good acres between 2 of them. So my plan was to just put hay in their shelter over the winter potentially So, no concentrates, pasture and maybe hay too over the winter. Sound like a plan? (They do have salt lick...)