Budgie on the loose at Rainham

I visited my local reserve at Rainham again today with my son and as we stood on the bank he asked "What's that blue bird Dad?" I replied " They're House Sparrows mate and they're not blue" and as I'd just finished saying it I saw the bird he was talking about....A bright blue female Budgerigar!
Somebody is no doubt missing her.

Female Budgerigar at Rainham Marshes

Budgie

Escapee!