YOU SAID:
There is a tall bird eating a fat rat
INTO JAPANESE
背の高い鳥が太ったネズミを食べています
BACK INTO ENGLISH
A tall bird is eating a fat mouse
INTO JAPANESE
背の高い鳥が太ったネズミを食べている
BACK INTO ENGLISH
A tall bird is eating a fat mouse
That didn't even make that much sense in English.