00000nam 2200000zi 4500 9.862008 CaOODSP 20221107160913 m o d f cr ||||||||||| 190918t20182018onca o f000 0 eng d 9780660278483 CaOODSP eng rda CaOODSP n-cn--- CW69-14/468-2018E-PDF COSEWIC assessment and status report on the Chimney Swift (Chaetura pelagica) in Canada. Ottawa, ON : Committee on the Status of Endangered Wildlife in Canada = Comité sur la situation des espèces en péril au Canada, [2018] ©2018 1 online resource (xii, 63 pages) : illustrations (some colour) text txt rdacontent computer c rdamedia online resource cr rdacarrier Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur le Martinet ramoneur (Chaetura pelagica) au Canada. "Threatened 2018." Title from cover. Includes bibliographical references (pages 41-54). "This aerial insectivore is a long-distance migrant, breeding in central and eastern Canada and wintering in South America. It has experienced a long-term population decline of close to 90% since 1970 in areas outside towns and cities, including a reduction of 49% over the past three generations (14 years). However, most roost counts in towns and urban areas show relatively stable numbers. A significant cause of decline is the reduced availability of aerial insects, likely due to the effects of agricultural and other pesticides, changing agricultural practices, and broad-scale ecosystem modifications in much of its breeding, migratory and wintering range. Reduced availability of roosting and nesting sites in chimneys and similar human-made structures, and in large hollow trees, is also likely contributing to declines. Greater frequency and severity of weather extremes may be reducing productivity, and increasing mortality during migration"--Assessment summary, page iii. gccst Endangered species Chimney swift Chaetura pelagica Committee on the Status of Endangered Wildlife in Canada. Canada. Environment and Climate Change Canada. Évaluation et rapport de situation du COSEPAC sur le Martinet ramoneur (Chaetura pelagica) au Canada. (CaOODSP)9.862009 COSEWIC assessment and status report on the Chimney Swift, Chaetura pelagica, in Canada (CaOODSP)9.562075 PDF 1.64 MB https://publications.gc.ca/collections/collection_2019/eccc/CW69-14-468-2018-eng.pdf