Sorry to hear this Walter, I understand how u feel i have currently lost four young birds and also got 1 with the *expletive removed* ripped clean out and all in the past three weeks or so .
That's correct but the rings in question clicked twiced but never fastened shut they just kept opening and unless u double checked u would of thought it was closed right
I had the same a couple of weeks back but when I checked the rest of the birds I noticed that some ets had dodgy clips on them and did not fasten correctly this week I even had to put a rubber over a ets just to keep it closed