I know what you're going through. I absolutely couldn't afford to keep my horses if I had to board them. A lot of people are ditching their horses according to our local wolf sanctuary. I had inquired of them at the beginning of the winter if they take horse donations for food. They said they've been inundated with "donations" of healthy horses so they no longer take a horse w/out a vet note saying the animal needs to be put down. I was inquiring because one of our old boys looks pretty horrendous and he has bad days where he's gimping around from a way old injury from before my time. I just want to have a plan in place for when the day comes and I don't think turning him into dog or cat food (we have a large cat sanctuary near us, too) for a good cause is a bad thing. You know, that circle of life thing. But, luckily my boy's the energizer bunny and he keeps going and going and going despite missing most of his teeth.
For a while I was feeling so bad for the neighbor's horses that I was throwing hay over the fence. But he had 6 of them. I just couldn't keep doing it. Animal control got an anonymous call on him, but they said the horses looked fine to them. I swear, the animal control officer was high. I'm not a horse expert and I could see they were thin. One of them died about a month later.

He said it was old. It was under 20 years old. We both know in this day and age, that's not that old. My two are pushing 30 and don't look like his. I have a huge tolerance for the variance in the way people keep their animals, but he's just an *ss clown.
Alfalfa in the nest box is a good thing. It's very high in calcium (you knew that). In some of my boxes I have alfalfa, grass and pine shavings so they can chew and ready up their rooms all squishy comfy. I actually throw handfuls of alfalfa in my bird cages every so often so they can dig through it and chew it up and get some extra calcium. Plus, I think they find it fun. I suppose in the home that would be a huge mess. I'm just used to mess everywhere. I don't have a household vacuum, I have a shop vac in the house. My husband's always picking feathers, seed hulls, hay, fur offa me before we go out. Any my shoes - fuggetaboutit - we live down a dirt road so I'm always covered in dirt.
Did I mention I live on Green Acres?