YOU SAID:

i have one black horse and one yellow bird

INTO JAPANESE

私は黒い馬と黄色い鳥を1匹持っている

BACK INTO ENGLISH

I have a black horse and a yellow bird.

INTO JAPANESE

私は黒い馬と黄色い鳥を持っています。

BACK INTO ENGLISH

I have a black horse and a yellow bird.