I have two budgies, ones albino and the other ones blue. I always thought the albino was female because it had a slightly pink cere but I couldn’t tell. The blue ones cere was always blue and I thought it was a male but today when I researched i found that light blue ceres are most likely female and my bird is only 14 months old. One of them laid an egg say about a week or a week and a half ago and I didn’t see which one it was. The egg was unfortunately cracked badly. They haven’t laid another since and I’m starting to worry if it’s egg binding. My budgie always puts its tail up and down always but slightly. It has always started breathing heavily and putting its tail up and down a lot when its nervous I think. But its done this before it laid the egg. I don’t know why it laid one egg nor why it bops its tail. Also if it’s relevant the blue (the one that might be a female) always moves away from the albino because it tried biting it sometimes. They preen next to each other and the blue one has attempted to preen the albino but hasn’t had success because it gets bitten or the albino just stares. Please help me.