Hi there, I'm the owner of Rebirth of the Night and we use your mod. I've noticed a large number of players be confused about the bucket/wheat icon above animals.

Speaking from a game design perspective, a water droplet and hunger shank icons would provide much more information to the player. Players don't know what a water bucket above a cow means. However, if it was a hunger shank above the cow, they would understand better that the cow is hungry since they have the same icon for their hunger.
Also, a wheat icon floating above the cow would tell the player it only eats wheat, which is untrue, especially in Rebirth of the Night. Same for wheat seeds floating above chickens.

Let me know if you have any questions. I hope you take my suggestion into consideration! Thanks!