Or possibly Would I Be Unwise? Lived here a year, don't know neighbours very well due to lockdown.
The people at the back of us appear to leave out food for the birds midmorning every day.
I noticed it when we first moved - maybe 2 dozen seagulls milling round over our garden to get the food. They can be quite aggressive, particularly in breeding season.
I went back to work so haven't noticed, but am now working from home again and they are still doing it.
The Council can't do anything. Environmental Health can but only if there's persistent mess or droppings.
I've nodded hello and exchanged a few words with them and know from another neighbour that there is some kind of leylandi hedge wars going on between pigeon feeding neighbour and the people who back on to them. Leylandi owners who won't cut hedge and pigeon feeders are different people.
We moved to get away from terraced house with noisy neighbours...I don't want to start a war. But equally I want to be able to sit in my garden without seagulls eyeing up my sandwiches/biscuit.