YOU SAID:

I saw three birds and two of them had no feathers

INTO JAPANESE

私は3羽の鳥を見て、2羽には羽がなかった

BACK INTO ENGLISH

I saw three birds, two without feathers

INTO JAPANESE

私は3羽の鳥、2羽の羽を見た

BACK INTO ENGLISH

I saw three birds, two feathers

INTO JAPANESE

私は3羽の鳥、2羽の羽を見た

BACK INTO ENGLISH

I saw three birds, two feathers