Ridgway's Rail
- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Gruiformes
- family: Rallidae
- genus: Rallus
- species: Rallus obsoletus
Ejido Plan de Ayala- Ensenada
- Mulegé
- Rodolfo Sánchez Taboada
- San Quintín
Baja California- Bahía Asunción
- San José del Cabo
Baja California Sur- San Patricio
Jalisco- Bahía de Kino
- Guaymas
- Yavaros
Sonora
Mexico
Desert Hills- Gila Bend
- Parker
- Yuma
Arizona- Alameda
- Alamo
- Albany
- American Canyon
- Bayview
- Belmont
- Belvedere
- Benicia
- Berkeley
- Big River
- Black Point-Green Point
- Bolinas
- Brawley
- Burlingame
- Calipatria
- Camp Pendleton South
- Carlsbad
- Carpinteria
- Cherryland
- Chula Vista
- Corte Madera
- Costa Mesa
- Daly City
- Del Mar
- Desert Shores
- East Palo Alto
- East Richmond Heights
- El Cajon
- El Cerrito
- Emeryville
- Encinitas
- Fairbanks Ranch
- Fairfield
- Foster City
- Hayward
- Hercules
- Huntington Beach
- Imperial Beach
- Irvine
- Kentfield
- La Jolla
- Larkspur
- Las Lomas
- Lomita
- Marin City
- Marina del Rey
- Martinez
- Mill Valley
- Millbrae
- National City
- Newark
- Newport Beach
- North Richmond
- Novato
- Oakland
- Oceanside
- Palo Alto
- Petaluma
- Piedmont
- Pinole
- Port Hueneme
- Redwood City
- Redwood Shores
- Richmond
- Ross
- San Bruno
- San Carlos
- San Diego
- San Francisco
- San Lorenzo
- Santa Clara
- Santa Venetia
- Santee
- Seal Beach
- Solana Beach
- South San Francisco
- Strawberry
- Suisun
- Tamalpais Valley
- Tamalpais-Homestead Valley
- Tiburon
- Westmorland
California
United States