Is statutes a proper or common noun?

The noun statues is a common noun, the plural form for the singular noun statue; a Word for any statue of any kind, anywhere.

A proper noun is the name of a specific person, place, thing, or a title; for example:

• The Statue of Liberty
• Statue Lake, Klamath National Forest, CA
• Statue Street, North Las Vegas, NV or North Statue Lane, Bald Hill, IL
• "Statue of Limitations" a novel by Tamar Myers