YOU SAID:

There is a bird sitting on the table.

INTO JAPANESE

テーブルの上に鳥が座っています。

BACK INTO ENGLISH

A bird is sitting on the table.

INTO JAPANESE

鳥がテーブルに座っています。

BACK INTO ENGLISH

The bird is sitting at the table.

INTO JAPANESE

鳥はテーブルに座っています。

BACK INTO ENGLISH

The bird is sitting at the table.