Dataset

Bird Conservation Network

About

Dataset summary

Since 1997, the Bird Conservation Network has partnered with land managers in the Chicago Wilderness Region and helped manage and train volunteers to conduct standardized point count monitoring of breeding birds as part of the BCN Survey. Data is collected mostly from actively managed preserved and protected lands and is collected by volunteers following a 5-minute stationary point count protocol, recording all birds detected within 75m of a point.

Season(s) and frequency

Annual surveys conducted at least twice during the breeding season.

Geographic area covered

Illinois, United States

Primary species covered

All breeding bird species

Goals

Working with local, regional, and state land managers to follow a standardized breeding bird monitoring protocol, the Bird Conservation Network has helped amass volunteer data from over 2,500 point count locations located within 75 miles of Chicago, IL. Data from the BCN Survey is used to produce regionwide bird trends, aid in the creation of a regional list of Birds of Concern, and help inform changes to restoration and land management practices that will benefit breeding birds in the region. Illustrating the power of collaborative regional monitoring efforts, BCN hopes that the BCN Survey can serve as a model for other urban and suburban areas that are not well monitored by existing roadside and other surveys.

Methods

Sampling Design

Point selection varies by participating agency and may include randomly selected points or points manually placed within specific habitat management units.

Field methods

Volunteer monitors are assigned points at a specific site and conduct stationary 75m radius point counts at least twice in June, as close to sunrise as possible, and record all species detected within 5 minutes at each point.

Partners

Citation

Bird Conservation Network and Cornell Lab of Ornithology. 2025. "Bird Conservation Network". Data accessed from NatureCounts, Birds Canada.