The western subspecies are endangered mostly due to destruction of their coastal habitat.
The eastern forms are still quite common and their populations appear to be stable; however, their numbers appear to be in decline as well largely due to habitat destruction.
- Clapper Rail (Rallus longirostris longirostris – Boddaert, 1783) – Nominate Race
- Range: South America: Along the coasts of Guyana, Surinam and French Guiana.
- California or San Francisco Bay Clapper Rail, Western Rail (Rallus longirostris obsoletus – Ridgway, 1874)
- Sometimes lumped together with the King Rail (Rallus elegans)Range: USA: Central California, with highest concentrations in the San Francisco Bay, where 1,000 to 1,500 birds are found and a small group occurs along the Colorado River.
- Rallus longirostris levipes – Bangs, 1899
- Sometimes lumped together with the King Rail (Rallus elegans)Range: USA / Mexico: Coastal central California south to northern Baja California.
- San Blas, Sonora or Yuma Clapper Rail(Rallus longirostris yumanensis – Dickey, 1923)
- Sometimes lumped together with the King Rail (Rallus elegans)Range:USA / Mexico: Southeastern California, southern Arizona and northwestern Mexico.
Belding’s or South Baja Clapper Rail, Belding’s Rail(Rallus longirostris beldingi – Ridgway, 1882)- Range: Southern Baja California.
- [Magdalena Clapper Rail, Rallus longirostris magdalenae – van Rossem, 1947] – subspecies usually considered invalid
- Sometimes lumped together with the King Rail (Rallus elegans)
- Range: USA / Mexico: Tidal lagoons of the Pacific coast of Baja California – from Magdalena Bay north to Seammon Lagoon. Probably to San Quintin Bay (Ref. Proceedings of Biological Society of Washington, May 10, 1947)
- [Magdalena Clapper Rail, Rallus longirostris magdalenae – van Rossem, 1947] – subspecies usually considered invalid
- Range: Southern Baja California.
- Northern Clapper Rail(Rallus longirostris crepitans – Gmelin, 1789)
- Range: USA: Coastal Connecticut to northeastern North Carolina.
- Wayne’s Clapper Rail(Rallus longirostris waynei – Brewster, 1899)
- Range: USA: Coastal southeastern North Carolina to eastern Florida.
- Louisiana Clapper Rail(Rallus longirostris saturatus – Ridgway, 1880)
- Range: USA / Mexico: Gulf coast from southwestern Alabama to extreme northeastern Mexico (Tamaulipas).
- Yucatan Clapper Rail(Rallus longirostris pallidus – Nelson, 1905)
- Range: Mexico: Southeastern Mexico along coastal Yucatán
- Rallus longirostris grossi – Paynter, 1950
- Range: Mexico: Southeastern Mexico: Quintana Roo
- Honduras Clapper Rail(Rallus longirostris belizensis – Oberholser, 1937)
- Range: Belize: Punta Ycacos Lagoon
- Florida of Gulf Coast Clapper Rail(Rallus longirostris scotti – Sennett, 1888) –
- Range: USA: Coastal Florida
- Brooks’s or Mangrove Clapper Rail (Rallus longirostris insularum – W. S. Brooks, 1920)
- Range: USA: Florida Keys
- Bahama Clapper Rail (Rallus longirostris coryi – Maynard, 1887)
- Range: Bahamas north of Cuba
- Isle of Pines Clapper Rail (Rallus longirostris leucophaeus – Todd, 1913)
- Cuba: Isla de la Juventud (“Isle of Youth”) formerly known as the Isle of Pines
- Antiguan, Antillean, Caribbean, Cuban, Hispaniolan or Puerto Rican Clapper Rail(Rallus longirostris caribaeus – Ridgway, 1880)
- Range: Cuba to Puerto Rico and Lesser Antilles east to Antigua, also Guadeloupe.
- [Rallus longirostris manglecola – Danforth, 1934] – subspecies usually considered invalid [Rallus longirostris limnetis – Oberholser, 1937] – subspecies usually considered invalid
- Range: Cuba to Puerto Rico and Lesser Antilles east to Antigua, also Guadeloupe.
- Rallus longirostris cypereti – Taczanowski, 1877
- Range: South America – along the coasts from extreme southwestern Colombia (Nariño) through Ecuador to extreme northwestern Peru (Tumbes).
- Rallus longirostris phelpsi – Wetmore, 1941
- Range: South America – extreme northeastern Colombia and extreme northwestern Venezuela.
- [Rallus longirostris dillonripleyi – Phelps and Aveledo, 1987] – subspecies usually considered invalid
- Range: South America – extreme northeastern Colombia and extreme northwestern Venezuela.
- Rallus longirostris margaritae – Zimmer and Phelps, 1944
- Caribbean Sea: Margarita Island (Isla de Margarita)
- Rallus longirostris pelodramus – Oberholser, 1937
- Range: Trinidad – the southernmost island in the CaribbeanID: Plumage is more heavily marked with black above.
- Rallus longirostris crassirostris – Lawrence, 1871
- Range: South America – coastal Brazil from Amazon estuary to Santa Catarina.