Birds' rhymes with:
bird's, birds, byrd's, bird's, birds, byrd's, gerdes, gerdes', girds, herds, kurds, nerds, n_words, third's, thirds, twothirds, word's, words
Birds' sounds like:
baird's, bard's, barites, bart's, bartak, bartek, barthes, bartko, bartkowiak, bartkowski, bartkus, bartok, bartos, bartosch, bartosh, bartosiewicz, bartosik, bartoszek, barts, bartsch, bartus, bartz, beards, beirut's, berarducci, berets, berettas, berridge, bertch, berths, bertke, bertsch, bertsche, bertucci, bertucci's, bertz, beveridge, bird's, birdcage, birddog, birdhouse, birdhouses, birdies, birds, birdseye, birthdays, births, board's, boards, boorda's, boortz, borda's, bordas, bordeaux, bordes, borthwick, bortz, braatz, brad's, bradco, braddock, bradish, bradshaw, bradtke, brady's, bradys, braids, brats, bratsch, bratz, breads, breathes, breaths, breed's, breeds, bretts, bretz, bride's, brides, bridge, bridge's, bridges, brietzke, britches, british, brits, britsch, britts, britz, broad's, broaddus, broadus, broadway's, brodowski, brodsky, brody's, broths, brutish, brutsche, brutus, brydges, burdge, burdick, burridge, burritos, burtch, burtis, burts, byrd's