They sell duck diaper's on amazon, so they most likely have the diaper's for the chicken's and geese too.
https://www.amazon.com/s?k=Duck+dia...sprefix=duck+diapers,aps,880&ref=nb_sb_noss_1
https://www.amazon.com/s?k=Duck+dia...sprefix=duck+diapers,aps,880&ref=nb_sb_noss_1