Thank you Mike. I used the timer as you suggested and I think it has made a big difference.
It's very kind of you to say so Neil, thank you, much appreciated.
Seems like the curry and hot bath worked Wurzel

- the first 2 BH eggs were hatched this morning

- trouble is, I have no idea where the cats have gone and can find no signs of where they might have entered a bud

. It is all very worrying and I shall be keeping a close eye on the others. A couple of early photos showing absolutely nothing, just for the record!
Today I have tied the remaining PH to Oak buds and shall be keeping a close eye on them too.