
© Seth Owens; Cornell Lab of Ornithology | Macaulay Library

© Lev Frid | Rockjumper Birding; Cornell Lab of Ornithology | Macaulay Library

© Blair Dudeck; Cornell Lab of Ornithology | Macaulay Library

© Linda Ankerstjerne Olsen; Cornell Lab of Ornithology | Macaulay Library

© Scott Watson; Cornell Lab of Ornithology | Macaulay Library

© Ryan Sanderson; Cornell Lab of Ornithology | Macaulay Library
Identity
Unique IDELEMENT_GLOBAL.2.100233
Element CodeABNME01010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumCraniata
ClassAves
OrderGruiformes
FamilyRallidae
GenusCoturnicops
Other Common NamesPolluela Amarilla (ES) Râle jaune (FR) yellow rail (EN)
Concept ReferenceAmerican Ornithologists' Union (AOU). 1998. Check-list of North American birds. Seventh edition. American Ornithologists' Union, Washington, D.C. [as modified by subsequent supplements and corrections published in The Auk]. Also available online: http://www.aou.org/.
Taxonomic CommentsMay constitute a superspecies with C. exquisitus (AOU 1998).
Conservation Status
Rank MethodExpertise without calculation
Review Date2016-04-07
Change Date1996-11-25
Edition Date2014-04-01
Edition AuthorsJennings, R., B. Van Dam, J. D. Soule, and G. Hammerson
Range Extent20,000-2,500,000 square km (about 8000-1,000,000 square miles)
Number of Occurrences81 to >300
Rank ReasonsWidespread distribution centered in south-central and southeastern Canada; apparently rather rare in most areas, though this is partly because of difficulty in detection; known to be fairly common in some areas; evidently declining in some areas where habitat destruction is ongoing, but there are some significant areas of protected habitat.
Range Extent CommentsBREEDING: locally from northwestern Alberta to central Saskatchewan, Manitoba, northern New York (Gibbs, pers. comm.), Maine, and New Brunswick, south to southern Alberta, northeastern Montana, North Dakota, Michigan, southern Wisconsin, northern Minnesota, southern Ontario, and New England; formerly south to southern Ohio and northern Illinois (Bookhout 1995). Nested formerly in eastern California, where current nesting is a possibility. Recently rediscovered nesting in southern Oregon (Stern et al. 1993). Formerly occurred in State of Mexico, Rio Lerma Valley (subspecies GOLDMANI) where last reported in 1964 (Bookhout 1995). NON-BREEDING: mostly on Coastal Plain in southeastern U.S. from Texas to North Carolina; scattered records in California from Humboldt to Riverside Counties (Bookhout 1995).
Occurrences CommentsDifficult to estimate due to rail's secretive nature, but a total of more than 150 EOs were reported from the five states and provinces that provided this information in a 1993 survey. It is likely that there are many more EOs in territories that did not respond (e.g., Manitoba and Saskatchewan). Species is likely highly under-detected. Many new records in Minnesota as a result of intensive county inventories suggest that the scant records prior to these inventories were due to lack of detection.
Threat Impact CommentsThe major threats are nesting habitat destruction due to coastal development, natural succession, and wetland destruction. The breeding grounds are used for hay and pastures. Light agricultural use is beneficial, whereas intensive grazing removes needed cover. Hunting is a threat of unknown dimensions, especially in the mid-Atlantic coastal zone (Gibbs, pers. comm.). In Minnesota, habitat is threatened by agriculture and gamebird management activities (Coffin and Pfannmuller 1988). The timing of flooding for waterfowl management differs from the natural flooding cycle of the migratory habitat of the rails (Rundle and Fredrickson 1981). Johnson and Dinsmore (1986) reported that waterfowl management can be compatible with breeding rails. In Mississippi, urbanization, development of the coastal zone, and stream alteration projects have lowered the water table and destroyed marshes.
In Illinois, a public viewing area used once a week by humans 229 m from a rookery did not cause any overt responses from nesting birds (DeMauro 1993). See Vos (1984) for information on response to human disturbance in Colorado. Predators may include the red fox (VULPES VULPES), mink (MUSTELA spp), raccoon (PROCYON LOTOR), snakes, turtles, crows (CORVUS spp), gulls (LARUS spp), hawks, owls, eagles, rats, opossum (DIDELPHIS VIRGINIANA), striped skunk (MEPHITIS MEPHITIS), river otter (LUTRA CANADENSIS), coyote (CANIS LATRANS) and bobcat (LYNX RUFUS).