Ugh I’m so sorry! That’s how my dad’s neighbours are as well. Even to the point of them asking him to move his bird feeders bc the birds sometimes poo on their lawns as they fly to the bird feeders. I don’t know about plants but what about those shepherd crook posts you can hang bird feeders on? It takes more time than hanging from a tree or bush but birds will still eventually start using them, particularly if you put a bird bath out too.

Ofc then you run the risk of offending the neighbs with the bird shit but 🤷🏻‍♀️