YOU SAID:
A cat with a red head is eating a fish
INTO JAPANESE
赤い頭を持つ猫が魚を食べている
BACK INTO ENGLISH
A cat with a red head is eating fish.
INTO JAPANESE
赤い頭の猫が魚を食べている。
BACK INTO ENGLISH
A red-headed cat is eating fish.
INTO JAPANESE
赤毛の猫が魚を食べている。
BACK INTO ENGLISH
A red-haired cat is eating fish.
INTO JAPANESE
赤毛の猫が魚を食べている。
BACK INTO ENGLISH
A red-haired cat is eating fish.
That didn't even make that much sense in English.