I don't believe you need to get that far into the weeds thinking about it, lol! Yes, birds have high metabolism, but they don't spend all of their days eating in the wild. If your sweet girl runs out of her favorites before her next meal, I imagine she's not going to starve to death. But do keep an eye on her weight if you reduce her food. And if you can keep trying with the veggies and pellets, that will help. I've read some threads here on AA where members feed almost exclusively veggies during high hormone season. I'm also reducing Opie's seed because of the fat content overall--not just because reducing the fat helps reduce the hormone triggers. Opie will eventually eat the pellets once he has eaten all the seed mixed in with the pellets.