Dataset

CMMN Daily Estimated Totals: Tatlayoko Lake Bird Observatory

About

Dataset summary

This dataset contains daily estimated totals (DET) from the Tatlayoko Lake 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.

Season(s) and frequency

Fall Monitoring occurs in August and September.

Geographic area covered

Williams Lake, British Columbia (51.653331, -124.404565)

Primary species covered

Primary focus is landbirds (104 priority species) with some Northern Saw-whet Owl banding.

Goals

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. The Goal of Tatlayoko Lake Bird Banding Station is to monitor the health of migratory birds moving through NCC properties.

Methods

Sampling Design

Standardized captures and observations used to derive daily estimated total throughout migration window.

Field methods

Combination of standardized daily captures, census, visible migration counts and other observations resulting in a daily estimated total for each species. Monitoring period is 6 hours in length and census is 1.25hours. The station runs 12 standard mistnets, 3 non-standard nets and 3 hawk nets.

Analysis methods

Most stations produce some form of annual report for members.

Partners

Tatlayoko Lake Bird Observatory

Citation

Tatlayoko Lake Bird Observatory. 2025. "Canadian Migration Monitoring Network". Data accessed from NatureCounts, Birds Canada.