I have a breeding pair with babies right now and I rotate which veggies they get so they always have variety and new foods. But recently my male has been crazy for spinach. He can easily go through several leaves of spinach in a sitting. If he finished what I gave him, he will pace back and forth and 'ask' for more. Even if there are other veggies left.
I'm not % sure on this but I would imagine that as long as he's having a healthy mixed diet as usual, a little more might not hurt as he is providing for the female and the babies and he's a busy dad right now.
He is still eating his regular seeds and egg food. He's just crazy for spinach right now. The babies crops are all green and full of it lol. I'm just wondering if there is any risk of over doing it on the spinach? Because I have experience with veggie eating reptiles and I know own you have to limit spinach because it has properties that can bind with calcium and cause deficiencies. Not sure of it was the same with birds though. There doesn't seem to be much information on the topic when it comes to budgies. I suppose everything in moderation. I'll skip spinach tomorrow. Duke won't be happy lol
The key to a healthy diet for budgies is much the same as it is for humans and other animals. You are best to serve foods in moderation.
I would recommend you cut back on feeding spinach to once or twice a week.
Spinach and Parsley contain oxalic acid which binds to calcium, blocks the absorption of calcium and puts stress on the kidneys.
Too much oxalic acid can also cause poor blood clotting and convulsions in birds.
Other green leafy vegetables you can offer include: