Can't imagine anybody being anti-bird, except about Grackles and Starlings and such, or the great big birds that might spirit off their little mop and fluff doglets. The majority of birds are the most delightful and welcome of visitors.
We had one particular busybody in our townhouse area that complained to the townhouse governing committee about people feeding birds, and they sent out letters threatening to take people to court for infractions. Now the busybody has moved away, and all the intractable bird-feeding criminals have quietly taken up their habits again. One family above me on the hill even has a birdbath and a hanging birdhouse on their tree, which attracts a variety of visitors and is delightful to watch.
I still prefer to keep my birdfeeding low key. My one neighbor is a townhouse official and she knows all about it, she even asks me how the birds are, so she's okay with it.