Greatbluehopefuls nest box 2019 & 2020 - Kildare,Ireland

So excited that building is taking place for you GBH, but wish for your sake there was a way around the cat problem.  Seems you're stuck between a rock and a hard place!  Like Paul, I just cannot believe it’s the Aldi box that has come up trumps for you.  So so hope the great tit keeps building for you and that Spooky gets bored  .  Shame there’s not a way to build some sort of cage around the box that would keep Spooky off but let the birds in.  Really really want this to happen for you GBH. 
Sue