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Migration Monitoring  Migration monitoring can include any of several methods to monitor birds on passage migration.Migration monitoring is a means of documenting changes in abundance of northern-nesting species that are relatively inaccessible for breeding season surveys. Change across broad geographic scales are deduced from trends from different stations across Canada. The Canadian Migration Monitoring Network (CMMN) is a cooperative venture among independent migration monitoring stations, CWS, and BSC. The CMMN currently includes 13 formal members, operated by a variety of government and non-government organizations and individuals, as well as several pilot operations. BSC is to carry out trend analyses for member stations. Results are intended to be published regularly, but so far have been completed only for the few stations that have operated for at least 5 years.  Migration monitoring requires substantial effort by skilled volunteers, and ongoing financial support for infrastructure and staff. Staff and volunteers receive training at the BBO and the training and exposure to organized birding often encourages participation in additional projects. The BBO operates 13 mist-nets starting just before sunrise and continuing for 6 hours. Spring monitoring takes place from around May 1 until approximately June 10. Fall migration monitoring takes place from August 1 well into September. |