tail bobbing or breathing?

[HeadlessH00ligan]

hey all.
my girl mango is huddled next to her cozy, resting her eyes, and i noticed this movement in her tail. is she okay, or is this tail bobbing?

 

[DonnaBudgie]

It looks normal to me. When birds breathe their bodies do more slightly including their tails. Tail bobbing is a more distinct rhythmic up and down with each breath.

 

[HeadlessH00ligan]

thank you!