I first photographed this mutation, which I believe is thought to be a dilute, in a collection in Florida, USA back in 2011. However, this photo was taken in a collection near Berlin, Germany during a European tour that I led in September 2018. Undoubtedly a very beautiful bird!

Hi Simon, its beautiful no doubt, i had a opportunity to see anothers color mutations like a blue, pied, dilute and the unique Lutino.
Wow! The blue must be stunning!
Its a Amanzona Amazonica Lutino
Beautiful!