Dataset

Daily Migration Counts: Innis Point Bird Observatory

About

Dataset summary

Counts from Innis Point Bird Observatory (IPBO) of birds banded and observed during daily operations; plus a composite Daily Estimated Total (DET): the best estimate for each species of unduplicated number of individuals detected within the official count area during the daily monitoring period

Season(s) and frequency

Standardized monitoring during spring migration (April 24 to June 7th)

Geographic area covered

Located near Ottawa (45.36, -75.89). Migrants at the site originate primarily from breeding range in Ontario and Quebec, but isotopic studies indicate that a portion of individuals of some species come from farther east

Primary species covered

Captures are primarily small passerines, but all species observed are recorded

Goals

To conduct standardized daily migration season counts and collect ancillary data on migration ecology for use in long-term biological and population monitoring of Canada’s bird species

Methods

Sampling Design

Daily capture and observation during migration seasons to generate species-specific daily totals of birds detected within each study site

Field methods

Daily operations (standardized since 1997) include 6 hours of banding (24 nets run for 6 hr), a fixed-route census of about an hour, and incidental observation during the 7-hr operations period

Analysis methods

See Quick Links. Population trends for ‘Regular Migrants’ at this site are based on counts from standardized methods only (numbers banded and recorded on census), while trends for all other species are based on Daily Estimated Totals that include incidental observations

Advice

Any disruption to standardized operations relevant to appropriate interpretation of analytical results is noted in a regularly-updated section of the station protocol (https://www.birdscanada.org/bird-science/cmmn-protocols). The station was not operated in 2020 or 2021 due to Covid 19 restrictions. Migration monitoring operations ended in 2025 but other observatory programs continue.

Partners

Citation

Birds Canada and Innis Point Bird Observatory. 2026. "Daily Migration Counts: Innis Point Bird Observatory". Data accessed from NatureCounts, Birds Canada. 10.71842/9fy3-2630