Your budgies are beautiful and look to be brother and sister.
What are their names?
Please take the time to read through the Site Guidelines, all of the How To Guides, the FAQs, the Budgie Articles and the stickies located at the top of each section of the forum.
Truly, the very BEST advice anyone can offer you is to take the time to read ALL of the stickies throughout the various Talk Budgie forums as well as the Budgie Articles we have posted.
These are great resources for Talk Budgie members and have a wealth of reliable information which will assist you to learn the best practices in caring for your budgies for their optimal health and well-being.