BREEDING BIRD POPULATION TRENDS OF THE CHICAGO REGION (1999-2020)
The BCN Survey is a monitoring program that has amassed a large volume of breeding bird data over two decades collected by the birders of the Chicago Region.
Summary of Findings
Read our 13 page narrative summarizing the key findings and results from the trends analysis.
Download the 1999-2020 Trends Narrative Report.
A shorter summary of findings and key takeaways can also be found in our public Press Release.
Explore the Results
Learn more about the trends and habitat preferences of each breeding bird species,.and view our list of Birds of Concern in the Chicago Wilderness Region that need priority management attention.
TRENDS ANALYSIS Goals
- Learn the regional trends of Chicagoland bird species in order to educate the public.
- Identify and monitor bird species of concern that need priority attention and management.
- Provide reliable information to public and private land managers to help improve land management practices for birds.
Thank You to Our Monitors
One individual's contributions may seem small, but together we have created one of the most robust databases of regional bird sightings in the nation. Your Work Has a Direct Impact on Helping Birds.
This analysis would not have been possible without the data, insights, and spirit of this knowledgeable and dedicated field crew. Hundreds of BCN volunteer bird monitors have contributed countless hours in the field to consistently and painstakingly collect this data year after year.
If you aren't already a monitor for the BCN Survey, we hope that you will join us. Your contributions can help us identify important habitat, improve current management practices, monitor threats, set regional priorities, and work with land managers to protect areas where birds are breeding. Just two visits of a couple hours at a preserve each summer can provide a wealth of information for this effort.
THANK YOU TO OUR DONORS
The 2021 trends analysis builds on the 2013 analysis and prior efforts to provide the most current and complete regional insight into bird species well-being. The effort was funded by the BCN organizational members together with personal donations from individuals. Funding supported the statistical analysis effort and updating this website and other communications. Contracted work was supplemented from countless volunteer hours from many of our project contributors below. Thank you!
Project CONTRIBUTORS
BCN created a steering committee to guide the trend analysis and Birds of Concern projects. The steering committee evaluated and selected an ecologist who, as a post-doctoral researcher, conducted the data analysis necessary to produce the bird trends from the mass of data. The steering committee also enlisted a team of science advisors to curate the Birds of Concern from source material. With the exception of the data analysis and website content update, all work was completed by volunteers.
DATA ANALYST: Valerie A. Steen PhD
BCN Steering Committee: Judy Pollock, Aubrey Sirman, Chris Monaghan, Tim Balassie, Matt Igleski, Sonny Cohen
Science Advisors: Doug Stotz PhD, Gary Casper PhD, Stephanie Beilke MS, Jim Herkert PhD, Aubrey Sirman PhD
Database Management:
Chris Monaghan, Donna Kenski, Eric Secker
Web Developer & Designer: Eric Secker
Trends Release Project Manager: Diann Bilderback
PR/Communications Team: Diann Bilderback, Bob Fisher, Judy Pollock, Sonny Cohen, Eric Secker
Communications: Bob Fisher
Media Relations: Bob Dolgan
Database: eBird: An online database of bird distribution and abundance [web application]. eBird, Cornell Lab of Ornithology, Ithaca, New York. Available: https://www.ebird.org.
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Make a Direct Impact For Chicagoland Birds
We're a regional conservation group focused exclusively on protecting birds and their habitats. Your donation helps fund BCN and support projects like breeding bird trends analyses, the BCN Survey, the Birds of Concern, and research and collaboration with land managers.
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