Feed those birds, won't you?

I love feeding birds, because I love watching birds, but my downstairs neighbours are bothered by the bird shit on their balcony beneath ours (which is okay, I guess), so I don't. We have a lot of small birds that are quite seriously hungry during the colder winters - house sparrows, great tits and blue tits are all very normal here outside our inner city windows. They are adorable. 

I would feed them in these, if I could. It's a Danish webshop, and I think it's a Danish product. They remind me a bit of my beloved himmeli - they are sweet, don't you think?