I don't mind that he wakes me up. I like to hear him. Tweet tweet twiddle tweet. It's like he and I have a connection. The symbolism is obvious, but from his point of view I suppose what he's doing is telling other birds to keep away from his manor or hurling abuse at a cat.
I've just remembered there's a Beatles song- a very pretty one- Macca through and through: "Blackbird singing in the dead of night." The website I've just visited says it's a song about civil rights. Yes, well, I suppose it is; but I bet it all started with Paul lying awake at midnight- just as I've been doing- listening to birdsong and thinking, " that's odd ."