Before I discovered the Merlin bird ID app from the ornithology lab at Cornell, I had to work pretty hard to figure out who I was listening to: https://ecbinvienna.com/2021/03/18/a-blackbirds-song/
Today I discovered why it was worth it: https://science.orf.at/stories/3237085/
Blackbirds rule! 😊
ecbinvienna 
I also read this article this morning – I can actually see them on my balcony in spring and love their song until late evening – but they stop in July …
Welcome to Vienna soon!
B.