Birdfeathers rhymes with:
birdfeather's, birdfeather's, birdfeather's, birdfeather's, feathers, birdfeather's, feathers, get-togethers, gethers, heather's, heathers, leathers, nethers, smethers, tethers, togethers, weather's, weathers
Birdfeathers sounds like:
birdfeather's, birdfeeder's, birdfeeders