If that is her first time to lay an egg, then sometimes that is “normal” for Budgies. They get confused, also maybe your nestbox is small for females and Budgie to get inside. If you are going to breed Budgies, you need a proper size nest box, cage, and diet for Budgies during breeding.
If that happened only once then that is normal, they like sometimes to fluff up and sleep during the day. If you noticed some behavior changes and they are fluff up most of the time, please check your avian veterinarian. Good luck
Budgies are social and flock birds, they need companions all the time. If Budgie is lonely you should get him a new friend. Spend more time with him, provide him a lot of toys and space to fly. Good luck
If you just got your Budgie, give them about a week or two to get used to a new environment and new friends. That is normal, they are scared. Here are some tips how to now is your Budgie happy or sad, read here
In the wild Budgies, the life span can be around 7-8year top.
But we have pet Budgies they can live up to 15 years if you take them properly. Give them healthy and fresh food, clean water. Also never forget about flying, they need to fly, and play on the Playground with a lot of toys. Want to learn more about the lifespan of a budgie? read here
You should provide your Budgie with foraging and shredding toys. Female Budgies love to bite and chew. You can give them the Apple branch. For gloves, try something smaller and tight. They will be scared, but after some time they will be alright.
