I used to think a bird feeder was just a bird feeder, but a neighbor in Phoenix set me straight
She saw my single tube feeder and said it was basically a fast food joint for aggressive birds like house sparrows, scaring off the smaller ones. I switched to a platform feeder with a roof and put it under my mesquite tree, and now I get way more variety, like verdins and curved-bill thrashers. Anyone else find that changing the feeder type totally changed their backyard crowd?
Hold on, that neighbor gave you bad advice. A tube feeder is fine. The aggressive birds were there first, that's just nature. You switched and now you're just catering to a different crowd, not a better one. You're basically kicking out the regulars because some picky new customers showed up. Let the sparrows eat, they gotta live too.