Hi all, I got my first budgie Sydney in December 2016 (aged around 2 months) from a pet shop and bought a second budgie Rocket (aged around 6 weeks) in march 2017 from a home breeder. I changed their water and food every few days. Ever since I got the 2nd budgie, Sydney has been puffing up and I just gathered he was doing it as a dominance thing? They live in a spare room at my house in a reasonable sized cage. The last week or so they have been shifted around a bit as I had guests and dogs, so they've been out in the kitchen and bathroom as well. My sister walked in the spare room yesterday t