A cuttlebone, of course.
A mineral block, of course.
But what about salt licks?
I remember my mother putting one outside for wild birds, and they would just attack it in droves. But those were different species of wild bird.
I tried doing an internet search, and another forum posted that salt kills parakeets...is this true?
I haven't looked into it myself but know a number of exhibition breeders who have a block of rock salt in the flights for the birds to chew on. I would imagine that would be different from feed foods with a high level of table salt, which would be dangerous.
I would not advise you to give your budgies salt as a "treat". Since they all should have a mineral block in their cage already, as well as a cuttlebone, both of those already contain trace amounts of salt that is all they need
and Princess Mallorn!
Thank you to Deb for her wonderful Faery magic