why are there so many blackbirds in my town?

Question

i live in grayling michigan in the middle of the upper lower penninsula

Answer 1

I've driven by Grayling on I-75 manytimes and it doesn't seem like a place where blackbirds would find food. Are there areas of cropland (cornfields) off the freeway somewhere or some open areas (not forested). If these conditions exist I could understand them being there. If it looks like what it looks like from the freeway, I don't know. Unless they are not blackbirds.