This species is listed as Vulnerable because its population is suspected to be in rapid decline overall, on the basis of regional trend data and knowledge of on-going threats that are causing habitat loss and degradation in both its breeding and wintering ranges.
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.
Catharus minimus (Sibley and Monroe 1990, 1993) has been split into C. minimus and C. bicknelli following AOU (1998).
16-19 cm. Small thrush. Buffy-brown upperparts. Bold black spotting on sides of throat and creamy-buff breast. Rest of underparts white. Greyish cheeks and lores, and dark reddish-brown tail. Similar spp. Smaller than Grey-cheeked Thrush C. minimus, and browner above with paler lores, buffier on breast and has yellow (not pink) on lower mandible. Swainson's Thrush C. ustulatus shows distinct eye-ring. Veery C. fuscescens is redder above and more finely spotted below. Hermit Thrush C. guttatus shows rufous tail. Voice Song, high-pitched chook-chook wee-o wee-o wee-o-tee-t-ter-ee descending at end. Call, harsh slurred whistle. Hints Best located by song in breeding areas.
Related state of the world's birds case studies
Anon. 2006/2007. Case study: Bicknell's Thrush. Bird Conservation: 10.
Atwood, J. L.; Rimmer, C. C.; McFarland, K. P.; Tsai, S. H.; Nagy, L. R. 1996. Distribution of Bicknell's Thrush in New England and New York. Wilson Bulletin 108: 650-661.
Campbell, G. 2011. High Elevation Landbird Program 2010 report. Bird Studies Canada, Sackville.
COSEWIC. 2009. COSEWIC assessment and status report on the Bicknell's Thrush Catharus bicknelli in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa.
Garrido, O. H.; García Montaña, F. 1975. Catálogo de las aves de Cuba. Academia de Ciencias de Cuba, La Habana.
Hale, S. R. 2006. Using satellite imagery to model distribution and abundance of Bicknell's Thrush (Catharus bicknelli) in New Hampshire's White Mountains. The Auk 123(4): 1038-1051.
IBTCG. 2010. A Conservation Action Plan for Bicknellâ€™s Thrush (Catharus bicknelli). International Bicknellâ€™s Thrush Conservation Group.
Lambert, J.D.; McFarland, K. P.; Rimmer, C.C.; Faccio, S.D.; Atwood, J. L. 2005. A practical model of Bicknell's Thrush distribution in the northeastern United States. Wilson Bulletin 117: 1-11.
Ouellet, H. 1993. Bicknell's Thrush: taxonomic status and distribution. Wilson Bulletin 105: 545-572.
Phillips, A. R. 1991. The known birds of North and Middle America. Allan R. Phillips., Denver.
Raffaele, H.; Wiley, J.; Garrido, O.; Keith, A.; Raffaele, J. 1998. Birds of the West Indies. Christopher Helm, London.
Rich, T.D.; Beardmore, C.J.; Berlanga, H.; Blancher, P.J.; Bradstreet, M.S.W.; Butcher, G.S.; Demarest, D.W.; Dunn, E.H.; Hunter, W.C.; Inigo-Elias, E.E.; Martell, A.M.; Panjabi, A.O.; Pashley, D.N.; Rosenberg, K.V.; Rustay, C.M.; Wendt, J.S.; Will, T.C.
Rimmer, C. 1996. A closer look: Bicknell's Thrush. Birding 28: 119-123.
Rimmer, C. C.; McFarland, K. P.; Goetz, J. E. 1999. Demographics and ecology of Bicknell's Thrush and montane forest birds in the Dominican Republic.
Rodenhouse, N. L.;Â Matthews, S. N.;Â McFarland, K. P.;Â Lambert, J. D.;Â Iverson, L. R.;Â Prasad, A.,; Sillett, T. S.; Holmes, R. T. 2008. Potential effects of climate change on birds of the Northeast. Mitigation and Adaptation Strategies for Global Change 13: 517-540.
Further web sources of information
Text account compilers
Benstead, P., Bird, J., Harding, M., Isherwood, I., Pople, R., Taylor, J., Wege, D.
Busby, D., Campbell, G., McFarland, K., Rimmer, C., Seutin, G., Whittam, B.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2014) Species factsheet: Catharus bicknelli. Downloaded from http://www.birdlife.org on 11/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 11/07/2014.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Species name author||(Ridgway, 1882)|
|Population size||63300-84000 mature individuals|
|Distribution size (breeding/resident)||5,800 km2|
|Links to further information|
|- Additional Information on this species|