If you're talking about someone with red hair:
* Ginger: A common and generally neutral term.
* Redhead: A more formal and direct way to say it.
* Strawberry blonde: Used for someone with light red hair.
* Titian: A more sophisticated and poetic term, referencing the famous Renaissance painter Titian who depicted many red-haired subjects.
* Auburn: Used for someone with reddish-brown hair.
If you're talking about the head of a red animal:
* Red-haired: This would be a descriptive term to use.
* Rufous: This term specifically refers to a reddish-brown color.
If you're talking about a specific type of animal:
* Red fox: This refers to a specific type of fox.
* Red deer: This refers to a specific type of deer.
It's important to consider the context and the tone you want to convey when choosing a word.