Dear You,
Here in Bavaria we have many many storks.
They go south in late autumn, and return in spring to their old stork's nests.
So yesterday I was surprised to hear very loud clatter (if that word is right):
one pair of storks has decided to remain here, sent back their tickets for a ride to Africa and thus thankfully reduced their carbon footprint.
Though, sitting on the best place of town - the church tower - maybe they only were afraid that if they leave others would squatter their nest?