Ruddy Pigeons!!

Usually, if I see pigeons heading for my balcony with twigs, I move the twigs away. After a day or so they find somewhere else to nest.
This weekend, however, we spent a lot of time away from the flat.
And this morning I found this...ARRRGGGHHH!!!
Too late now. Still, if it all goes well, it's something for my youngest to watch closely.
Daft pigeons. All the empty flats here that have been emptied for redevelopment, and they choose mine! It catches all the westerly winds and often goes above 40C at this time of year.
I have a nest, and it belongs to retarded pigeons.