Mine expect fresh sand for their dust baths whenever there's less than an inch of sand left. They ALSO expect whole leaf iceberg lettuce (about zero nutrition, but it's packed full of water, so it won't blow their diet), chopped broccoli flowers, chopped green cabbage (mine won't touch the red cabbage, but love green). I offer kale when it's available and priced reasonably; a pity that those conditions are only one time annually. This veggie treat is their demand for deigning to clean their cage. I'm making it sound like a joke, but it seriously does seem as if they go on strike until my flock is reassured by the overabundance of great to eat treats. Sadly, I must allow them to strike for a day or two before my gift has the desired effect; putting veggies in the same day as cleaning doesn't seem to have the same impact. I have been able to reduce the severity of their withdrawal by making a point of hand turning their litter daily, which further extends the time needed between an 'out with the old, in with the new' cleaning; they seem less alarmed.
