IUCN threat status:

Vulnerable (VU)

Distribution

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Range Description

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).


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Source: IUCN

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