Unfortunately, I can't give my guys spinach anymore due to oxalates (I'd been giving them spinach, Swiss chard, etc., all summer long, and it messed with calcium absorption). However, I'll definitely buy them some almonds and sesame seeds (I have squash and pumpkin seeds that I haven't been giving them).
I'll definitely have to buy some of those calcium supplements you mentioned. They do have one or two of those UVA/UVB bulbs by SunGlo or whatever it's called (I forget what they're called, but they're the ones that they sell for that standing floor lamp for parrots), and one of those Flood Pro UVA/UVB lamps with an Arcadia bird bulb in it. However, those are only above the double flight cage, and the kÄkÄriki hardly spend any time over there. Maybe I should buy a UVB reptile bulb (one of those 4' long ones) to put in a light fixture. I know the UVB output in reptile bulbs is way too high, but I think the fixture would be far enough away from the birds for most of the UVB rays to be diffused or whatever by the time the rays reach them. They live in an aviary, so it isn't like I'm blasting them with cancer rays. Oh, right, the UV lights are on from 10 am (I think) until 8 pm.
Oh, and for the UV lights, my oldest baby, Samantha, doesn't benefit from the UVB (but she does benefit from the UVA since it lets her see a wider range of colours). Her preen gland turned into some sort of large cyst or tumour a couple of years ago, so it hasn't been producing any UV absorbing oils for her to ingest. However, everyone else's preen glands are fine.
I brought the kÄkÄriki to the vet on Thursday (or was it Friday?), had a variety of things done including getting blood work done for Ria since she's been having focal seizures or something, and the vet phoned back today and said she has low blood calcium (which I wanted to have her tested for because of the seizure-like episodes).
I've started doing sprouts again since the budgies have been having tummy problems, and also because I can sprinkle vitamin and mineral supplements on them before serving. So far I'm sprinkling Nekton-S on their sprouts (for noobs and non-members reading this, DO NOT GIVE ECLECTUS VITAMIN SUPPLEMENTS! This is for budgies, kÄkÄriki, and a parrotlet).