Birdfeeders rhymes with:
birdfeeder's, birdfeeder's, birdfeeder's, birdfeeder's, feeders, birdfeeder's, breeders, breeders', cedars, feeders, leader's, leaders, leaders', meaders, meadors, reader's, readers, readers', reeders, reiders, reiders', rieders, rieders', speeders
Birdfeeders sounds like:
birdfeather's, birdfeathers, birdfeeder's