It’s unfortunate and saddening to hear. If you are in a built up urban environment the turkeys have proven highly adaptable. Most local councils have policies on managing them if they are a problem. Usually only a phone call away if there is a problem.
In more rural areas keeping chooks is akin to opening a fast food take away for the local feral animals and depleated native species. Our rural neighbours who are successful with chooks have substantial pens and lock the birds up at night. Mostly it’s foxes and wild dogs that take out the chooks around here. I’ve another further away who has a feral cat the size of a lion (err, not quite but can be over 10kg) that is also keen on fresh chicken.
The local snakes prefer the mice and rats the chooks attract, while the eggs are a favourite of the pythons. Some prefer to have a cat or two to keep the mice etc at bay. Unfortunately cats when treated or used in that way tend not to understand this and indiscriminately kill wildlife in large numbers. Which is counter to why many choose the ‘tree change” to hear the birds in the morning and have a few chooks.