question for the bird feeders. since we have been having trouble w/ rodents I was thinking of taking down our hopper style seed feeder & putting up some type of suit feeder. is this a sound idea?
I suspect a lot depends on what species you have, in what environment and the time of year. In the UK what birds eat what varies a lot through the year eg at the moment Blue tits are eating sunflower hearts and peanuts whilst robins like fat balls, wood peckers peanuts only, etc.
Also remember that, depending on the environment, feeding birds can actually damage bird populations and diversity. Not all species will visit feeders and feeding benefits those species that do use feeders giving them a big advantage, increasing their populations allowing them to out-compete other species for other resources like nesting sites. some years back I ended-up refilling a large sunflower hearts feeder every day and had vast flock of Goldfinches empty it, I'd totally skewed the environment and their population and put everything out of balance.
Not saying one shouldn't feed birds (I feed them) but think carefully about how much, when, etc. And in many situations important to grow appropriate plant species to provide a balanced ecosystem (ie to support insects that are prey for eg birds, to provide shelter and protection, roosting/nesting sites, etc.).