Canadian Migration Monitoring Network
By Request
1994
CMMN was launched in 1998 as an ongoing monitoring program. The first migration monitoring station in North America was LPBO, started in 1960. Rocky Point Bird Observatory was began in 1994 and standardized migration monitoring started in 1999. A second site was established at Pedder Bay in 2012
This dataset contains daily estimated totals (DET) from the Rocky Point Bird Observatory. DET is a standard protocol used by Canadian Migration Monitoring Network stations to estimate the total number of individuals of each species occurring at a site during migration.
Fall montioring occurs between July 21st and October 18th.
Located near Victoria, British Columbia (48.320278, -123.597778). Rocky Point count area is approximately 35 hectares and Pedder Bay count area is approximately 35 hectares.
Primary focus is landbirds (104 priority species).
To generate counts of migrating birds for use in long-term population monitoring, especially landbird species not monitored by current breeding or winter surveys; To carry out cooperative research projects on the ecology of migrating birds.
Standardized captures and observations used to derive daily estimated total throughout migration window.
Combination of standardized daily captures, census, visible migration counts and other observations resulting in a daily estimated total for each species. Count period is 6 hours in length and census period is 1.5hours at Rocky Point and 1.25 hours at Pedder Bay. Rocky Point runs 13 mist nets and Pedder Bay runs 16 mist nets.
Most stations produce some form of annual report for members.
Any disruption to standardized operations relevant to appropriate interpretation of analytical results is noted in a regularly-updated section of the station protocol. As of 2025, it had been noted that no data were collected in 2007.
Canada Department of National Defense, Birds Canada, and Rocky Point Bird Observatory. 2025. "CMMN Daily Estimated Totals: Rocky Point Bird Observatory". Data accessed from NatureCounts, Birds Canada. 10.71842/j90w-yf52
