How big are the bags/bales of hay? I live in Watford & currently buy bales of stalky hay from Dust Free Hay Co. The hay used to be lovely & long & stalky but it's now short & soft (although I'm still ordering stalky) & my buns aren't really eating it, resulting in my Rex going into a really bad bout of stasis. St Albans isn't far from Watford but I do need a large quantity to satisfy 4 buns