under our R.P.R.A rule master is struck with (tim) and ets by radio signal, but thay are concidering allowing all clocks to be struck against the radio signal.
due to its age it will be someones stock bird that has escaped, what area are you from we may have a member on here that lives close to you that can care for it untill owner is found,
think you would be better putting your loft up first and dont face it towards next door let them see the back of it as it would look like any garden shed.
try letting the cocks out first, as it seems the 2 cock are being spooked by the change in light as no way would thay fly till 11pm thay run the risk of hitting wires.