This bird is wild not far from me... a place called Noosa, it's right on the beach and is quite built up, there is a large population of srubbies there none the less. Apparently white chicks have been seen in that area too.
Not surprised to see a wild brush turkey white, from my observations of them humans populating their natural habitat quite effectively prevents the offspring spreading out of the parental territories, and recessive genetics rise to the fore quite rapidly. In one property I lived on, it was both cardiovascular and neurological issues, you frighten them and they go into convulsions.
It is very interesting how every continent contrubute in different galiformes for example
asia- ornametal pheasants andpeafowls
africa-francolins, guinea fowls and congo peafowls
australia- scrubfowls, malee fowls,megapodes and brush turkeys
north america- the grouse species and wild turkeys
south america- currasows and guans
europe- some patridge species
every continent have a contrubution on quails etc
but the most interesting is the australians species which incubated their eggs in humid leafs and malee fowls which used the warm ground of vulcano active enviroment to incubate their eggs and I wonder if some breeders have the knowledge to breed this birds in captivity.
here some pics of the brush turkey
australian brush turkey