Catharus bicknelli breeds patchily in south-east Quebec and the Maritime provinces,
Canada, and eastern New York and northern New England,
USA (Phillips 1991, Ouellet 1993, Atwood
et al. 1996). There are 20,000-50,000 adults in the USA (C. C. Rimmer
in litt. 1998, 1999,
K. McFarland
in litt. 1999) and 1,000-3,000 birds in the Maritime provinces (D. Busby
in litt. 1999), but there have been local extinctions (C. C. Rimmer
in litt. 1998, 1999). It migrates along the coast to winter in the Caribbean (Raffaele
et al. 1998). The stronghold is the
Dominican Republic (especially the Sierra de Baoruco and Cordillera Central) and possibly
Haiti (Raffaele
et al. 1998, Rimmer
et al. 1999). It may also winter in the Blue Mountains of
Jamaica, and small numbers occur in
Puerto Rico and
Dominica. There are three records from
Cuba, including one in the Sierra Maestra in 1999 (Garrido and Garcia Montaña 1975, C. C. Rimmer
in litt. 1998, 1999, G. Seutin
in litt. 1999). The population is suspected to be in rapid decline overall. Population trend data show mixed results, but annual declines of 7-19% have been documented in parts of the species’s breeding range (IBTCG 2010). Surveys (conducted through the High Elevation Landbird Program) in New Brunswick and Nova Scotia recorded apparent declines of c.16%/year and 11%/year respectively between 2002 and 2010 (Campbell 2011). Results from the second Maritime Breeding Bird Atlas show a greater than 40% decline in the distribution of the species between 1999 and 2009 (COSEWIC 2009). The current population estimate for the species in Canada is between 40,570 and 49,258 birds (COSEWIC 2009), with global estimates of 95,000-126,000 birds (IBTCG 2010).
Rights Holder: International Union for Conservation of Nature and Natural Resources
Bibliographic Citation: BirdLife International 2012.
Catharus bicknelli. In: IUCN 2014 . IUCN Red List of Threatened Species. Version 2014.1 . <
www.iucnredlist.org>
