Great Backyard Bird Count

Great Backyard Bird Count
Name	Great Backyard Bird Count
Caption	Birdwatchers at a counting site
Status	active
Genre	citizen science
Frequency	annual
First	1998
Organizer	Audubon Society; Cornell Lab of Ornithology; BirdWatch Ireland
Participants	global citizen scientists

Great Backyard Bird Count The Great Backyard Bird Count is an annual citizen science event that mobilizes amateur naturalists and professional ornithologists to document avian distribution and abundance. Organized by organizations such as the Audubon Society, the Cornell Lab of Ornithology, and international partners, the count integrates community observation with institutional research to produce large-scale biodiversity datasets. It overlaps temporally and methodologically with other initiatives like Christmas Bird Count, eBird, Citizen Science Association, and regional monitoring programs.

Overview

The count is a short-term, intensive survey during which volunteers from countries including the United States, Canada, United Kingdom, Mexico, Australia, India, South Africa, and many others submit standardized checklists of birds. Participation is open to individuals, schools, clubs such as the Royal Society for the Protection of Birds members, university groups affiliated with institutions like University of Cambridge, Cornell University, and conservation NGOs such as World Wildlife Fund and BirdLife International. Data contributes to continental and global assessments used by agencies such as the United States Fish and Wildlife Service, the Canadian Wildlife Service, and international assessments by bodies linked to the Convention on Biological Diversity.

History

The event was launched in 1998 as a collaboration between the National Audubon Society and the Cornell Lab of Ornithology and grew through partnerships with organizations including BirdWatch Ireland, Royal Society for the Protection of Birds, and regional birding clubs. Early years saw coordination with projects like the Christmas Bird Count and advances in data-sharing through platforms developed by laboratories at Cornell University and networks coordinated by the American Birding Association. Over time, technology from companies and institutions such as Google (mapping), Apple (mobile platforms), and academic research groups at Massachusetts Institute of Technology and University of Oxford enabled online submission, spatial analysis, and public dashboards.

Participation and Methodology

Volunteers, ranging from members of the Sierra Club and Boy Scouts of America to students at the University of California, Berkeley and community groups, submit observations during a prescribed multi-day period. Methodology emphasizes standardized effort: observers record species and counts, duration, and location using tools developed by the Cornell Lab of Ornithology and data standards influenced by international frameworks such as those used by Global Biodiversity Information Facility and monitoring protocols from the International Union for Conservation of Nature. Training materials are often produced with partners like National Geographic Society and local museums such as the Smithsonian Institution and the American Museum of Natural History.

Data Collection and Analysis

Data are collected via online portals, mobile apps, and paper forms, aggregated into databases maintained by institutions including the Cornell Lab of Ornithology and shared with repositories like the Global Biodiversity Information Facility. Analysts apply statistical methods developed in collaboration with researchers at institutions such as Princeton University, Harvard University, and University of California, Davis to control for detection bias and effort. Results are integrated with long-term datasets from projects like eBird, the North American Breeding Bird Survey, and telemetry studies involving research centers such as the US Geological Survey and the British Trust for Ornithology. Outputs include species distribution maps, temporal trend analyses, and peer-reviewed studies published in journals like Science, Nature, and specialized outlets tied to societies such as the American Ornithological Society.

Impact and Conservation Outcomes

The count has contributed to conservation planning by informing assessments used by agencies including the United States Fish and Wildlife Service and international bodies like the Convention on Migratory Species. Data have supported habitat protection campaigns by organizations such as The Nature Conservancy and BirdLife International, influenced policy debates in legislative bodies including the United States Congress and regional assemblies, and aided species recovery efforts coordinated with zoos and aquaria like the San Diego Zoo and programs at the Royal Society for the Protection of Birds. Educational impacts include curricula integration in schools associated with programs from the National Science Teachers Association and outreach through media partners such as PBS and BBC Natural History Unit.

Criticisms and Limitations

Critics point to biases inherent in volunteer-based programs noted by scholars at institutions such as University of Oxford and University of British Columbia: uneven geographic coverage favoring populated regions like New York City, London, and Toronto; species detection biases affecting rarer taxa; and variable observer skill levels. Methodological limitations include short temporal windows compared with year-round monitoring like the Breeding Bird Survey and challenges in integrating heterogeneous datasets noted by analysts at organizations like the Global Biodiversity Information Facility and research groups at Massachusetts Institute of Technology. Nonetheless, collaborations among organizations such as the Audubon Society, Cornell Lab of Ornithology, and international partners continue refining protocols to address these concerns.

Category:Citizen science