I think this thread is a wind up.
I am a BALPA member, nothing along these lines has appeared in the mail or the BALPA forum.
A postal ballot would be required, which I think requires 28 days, and then strikes and other sanctions must be timed within 28 days of any postal ballot of members, with seven days' notice being given to the employer.
By this time the lovely white bird will be retired.
Once again, its a wind up folks!