Overview
Project Name
Canadian Migration Monitoring Network
Access Level
By Request
Year started
2015
Year Ended
Ongoing
Dataset
CMMN Daily Estimated Totals: Oak Hammock Marsh
About
Dataset summary
Daily counts of birds banded, incidentally observed during standard observation and a composite Daily Estimated Total consisting of the best estimate for each species of unduplicated number of individuals detected within the official count area during the standardized operation period. Daily effort data are included for most years.
Season(s) and frequency
Standardized coverage five days per week, from second week of July through end of September.
Geographic area covered
Located in southern Manitoba (50.17, -97.13). Migrants at the site originate primarily from breeding range in MB and ON, but isotopic studies indicate that a portion of individuals of some species come from more western breeding range.
Primary species covered
Captures are primarily small passerines, but all species observed are recorded.
Goals
Contribute to the Canadian Migration Monitoring Network (https://www.birdscanada.org/bird-science/canadian-migration-monitoring-network-cmmn) by conducting standardized daily migration season counts and collecting ancillary data on migration ecology for use in long-term population and biological monitoring of Canada’s bird species.
Methods
Field methods
Standardized banding using 8 nets, for 6 hr from dawn onward, and recording of observation made during standard operations
Advice
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, As of 2025, the only alert to users of this dataset is that effort was reduced in 2020 and 2021 due to Covid 19 restrictions.
Partners
Nature Manitoba
Harry J. Enns Wetland Discovery Centre
Citation
Birds Canada, Environment and Climate Change Canada, Nature Manitoba, and Harry J. Enns Wetland Discovery Centre. 2025. "CMMN Daily Estimated Totals: Oak Hammock Marsh". Data accessed from NatureCounts, Birds Canada.
