Congrats on your gorgeous new budgie boy! 
As to age, and taking all factors into account and despite him having still some remnants of baby barring, I'd say he is about 5 and a half months old.
He already has all his big boy throat spots and the irises are starting to get lighter in colour. Some budgies do develop the irises sooner than what is expected.
As to age, and taking all factors into account and despite him having still some remnants of baby barring, I'd say he is about 5 and a half months old.
He already has all his big boy throat spots and the irises are starting to get lighter in colour. Some budgies do develop the irises sooner than what is expected.