POL Government Elected Officials Auditor Mary Hull Caballero Charter, Code & Policies City Code & Charter Online Code & Charter Title 13 Animals Chapter 13.10 General Animal Regulations
13.10.010 Roosters Prohibited.

It is unlawful for any person to harbor, keep, possess, breed, or deal in roosters in the City of Portland.  The provisions of this Section shall not be construed to prohibit the possession of roosters for commercial purposes.