Townsend, Jason M., Kent P. McFarland, Christopher C. Rimmer, Walter G. Ellison and James E. Goetz. 1 Isolated patches of habitat extend along the Laurentian and northern Appalachian highlands into southeastern Canada and include a diminishing number of Atlantic coastal sites. Until 2014, large tracts of forest were illegally converted into small subsistence agricultural plots, or cut down and baked into charcoal for use in Haiti and for export to international markets. endobj Beyond this, guard communications and patrol protocols have been improved, and two new guard houses have been constructed in areas that were heavily impacted by illegal activities. x�3��0�300P AcSC8;9�K?S�% i�� More than 70 percent of all Bicknell's Thrush winter on the island of Hispaniola. %PDF-1.7 Lined with grasses or horsehair fungus.
(2015). x�3�34260U0 A$vr.��[���K> u�� In The Birds of North America (P. G. Rodewald, editor). endstream Bicknell’s Thrushes eat mostly insects and other arthropods, especially ants and beetles, as well as small fruit when available. Bicknell’s also breeds in spruce-fir forests on the coast of New Brunswick and Nova Scotia, at much lower elevations. Wilson Bulletin 114:333-341. The reasons for declining populations are not well understood but may include airborne pollutants that harm the species’ high-elevation forest habitats and contribute to high levels of mercury in this species.
The Bicknell’s thrush is a migratory passerine (or songbird) that summers in the northeastern U.S. and southeast Canada. Black-and-White Warbler, Dennis W. Donohue/Shutterstock. The Hispaniolan Crossbill is found only in the Dominican Republic, including in Sierra de Bahoruco National Park. Cup nest made of balsam fir or spruce twigs and moss, sometimes with grasses, sedges, ferns, leaves, bark, hair, or lichen as well. Get Instant ID help for 650+ North American birds. Photo courtesy of SOH, May 2015. <>>>/Length 32>> In the last two years, we have helped SOH and the Ministry to hire additional staff and provide them with training (in security and firefighting, for instance) and equipment (radios, boots, canteens). Such habitats can be the product of damage by ice, fire, or storms or of human activities, such as timber harvest or trail construction. Photo by Larry Master. Our collaboration with SOH Conservación is decreasing the threats to the forest where Bicknell's Thrush spend their winters. Through much of the breeding range, balsam fir is a key tree species, with red spruce, black spruce, white birch, and mountain-ash also typically present. <>/Filter[/FlateDecode]/Matrix[1 0 0 1 0 0]/Subtype/Form/FormType 1/Resources<>>>/Length 16>> Habitat use by the Bicknell's Thrush in the Estrie Region, Quebec. Some predictive studies of global climate change indicate the loss of more than half of Bicknell’s breeding habitat by 2038 and the loss of more than 90% by 2100. In most breeding locations, the ground is mossy, the trees are small and grow close together, and there are plenty of fallen trees, dead trees, and snags. Sierra de Bahoruco National Park and the neighboring Loma Charco Azul Biological Reserve, Neotropical Migratory Bird Conservation Act, Calling All Birders: It's Time to Organize, 'Cat Wars' Issues a Call to Action for the Birds of North America. Nest dimensions average about 4.8 inches across and 3.4 inches tall, with interior cup 2.7 inches across and 1.8 inches deep. Males often feed nestlings that are not their own offspring. Bicknell's Thrush (Catharus bicknelli), version 2.0. 21 0 obj 19 0 obj Fish and Wildlife Service, Critical Ecosystem Partnership Fund; private donors; and MARENA. They are also home to 28 of 31 bird species found only in the Dominican Republic and provide one of the few known nesting sites for the Black-capped Petrel. HABITAT: Breeds in high-elevation coniferous forests of northern New England, the Adirondacks, and southeastern Canada. Leaders in park conservation, shown at an initial meeting at Sierra de Bahoruco National Park's Visitor Center. When feeding young, they forage at all levels in the forest, including in undergrowth and trees, taking whatever insects (and larvae) are available by gleaning, hover-gleaning, and even flycatching. Bicknell’s Thrush was recognized as a full species only in 1995, so long-term population trends from the North American Breeding Bird Survey are not available. Andrew was the Executive Director of the Sarapiqui Conservation Learning Center in Chilamate, Costa Rica, and spent three years as the Assistant Wildlife Educator and Naturalist at Horicon Marsh with the Wisconsin Department of Natural Resources. Yet the protected areas are experiencing a human and environmental crisis.
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