lutino cockatiel

Hi! I'm Gouda, or Finch, or just Goudafinch is fine too. I'm a nonbinary teen bird enthusiast who has had a bit of experience owning birds (initially parakeets) and now currently own two cockatiels. One is cinnamon, and her name is Kelma. The other is a Lutino, and his name is Gummigoo. One is...

So I have my pet lutino cockatiel with me for like, 6-7 months and he's very tamed and bonded towards me. However, he has been unpredictable with hisses at me today while in his food bowl, and was wondering if it's because I've been arranging his cage too much. Moving perches, food bowls, etc...