I'm not sure if this should be in the emergency section but I fear it could be something that needs immediate attention,
Title sums up what is happening. I can't verify the age/sex personally, but the pet shop claimed the budgie is male.
Here are the comparison pictures: imgur.com/a/mN4RF
I have not noticed any other strange behaviour.
Excuse his messy bill due to his recent carrot and greens feast!
Thanks, what do you all think?