You have a wonderful and helpful article on your website. Thank you for sharing. I used to have a collection of small soft billed finches and decided to concentrate mainly the Lady Gouldian Finches. In regards to salt, I usually provide my birds with a spool of rabbit salt and they seemed to love it. I wasn’t aware of the danger but I know that only few of them will lick the spool when they feel like they need to just like other animals. I will definitely would like to get some insight from the community. Thanks and hope to see comments from other breeders or hobbyist.