AshH1

Hello, I have recently changed my budgies food from viral to a different brand, ever since I’ve had her she’s been fine, a shy bird but I figured she’s getting used to us and my other female budgie, who we have had longer therefore getting them to become friends was a long process in its self. recently as I changed the food my blue budgie started vomiting, it’s only happened once today and it’s the first time I had seen her vomit as I have seen them both regurgitate and I knew it definitely wasn’t regurgitation, she was flogging seeds and head bobbing. I was just wondering could the change in food be a cause? She is younger than my yellow budgie, or could this be a more serious thing?