Great Backyard Bird Count

The Great Backyard Bird Count is observed for four days each February, typically beginning on the Friday before Presidents’ Day. In 2026, it falls from February 13 to February 16. This global community science project encourages people of all ages to step outside and tally the bird species they see in their local environments. By dedicating as little as 15 minutes to observation, participants help create a massive, real-time snapshot of bird populations across the world. The data collected provides a vital window into the health of avian species and their migration patterns before spring begins.

History of Great Backyard Bird Count

The Great Backyard Bird Count was launched in 1998 by the Cornell Lab of Ornithology and the National Audubon Society. It was the first online participatory science project of its kind, designed to collect data on wild birds and display the results almost immediately. In the early years, the project primarily focused on North American birds, but it quickly demonstrated how interested the public was in contributing to scientific research. Birds Canada joined the partnership in 2009, further expanding the reach of the initiative across the continent.

In 2013, the event officially became a global project when it integrated with eBird, the world’s largest biodiversity-related community science database. This expansion allowed birdwatchers from every continent to submit their sightings, transforming a regional effort into a massive international collaboration. Today, hundreds of thousands of people participate annually, documenting thousands of different species. The growth of the count has been fueled by mobile technology, making it easier than ever for anyone with a smartphone to contribute to global ornithology.

Why is Great Backyard Bird Count important?

The data provided by thousands of individual observers helps scientists track changes in bird populations that might otherwise go unnoticed. Because the count happens at the same time every year, researchers can compare year-to-year trends to see which species are thriving and which are in decline. This information is critical for identifying the early warning signs of environmental threats, such as habitat loss or the impact of unusual weather patterns. It allows conservationists to prioritize specific areas or species that need immediate protection.

Participating in the count also fosters a deeper connection between people and their local ecosystems. By slowing down to notice the specific birds in a neighborhood, people often become more aware of the biodiversity surrounding them. This awareness frequently leads to a greater interest in local conservation efforts and more bird-friendly practices at home. The project proves that scientific research does not have to be restricted to laboratories; it can be a collective effort that relies on the simple, honest observations of people around the globe.

• Bird populations serve as excellent indicators of the overall health of an ecosystem.
• The count helps scientists track the spread of invasive species across new territories.
• Real-time data allows researchers to see how birds are reacting to climate change.
• Community science provides a much larger data set than professional teams could manage.
• Information from the count is used to adjust land management and pesticide policies.

How to Observe Great Backyard Bird Count

Participating is a straightforward process that requires no special equipment other than a way to record your findings. Choose a location to watch birds for at least 15 minutes during the four-day window. This can be a backyard, a local park, or even a spot by a window. During this time, identify every bird you see or hear and keep a tally of the total number for each species. If you are unsure of a bird’s identity, digital tools and apps can help you narrow down the possibilities based on size, color, and location.

Once the observation period is over, the findings must be submitted through the official website or a mobile app like eBird or Merlin Bird ID. These platforms make it easy to log sightings and even upload photos or sound recordings for verification. Many people turn the count into a social event by organizing group walks or hosting bird-watching parties. It is also a popular activity for families and classrooms, as it introduces children to the basics of biology and data collection through a fun and active experience.

• Set up a bird feeder a few days early to attract more species to your yard.
• Use binoculars to get a clearer view of markings on smaller songbirds.
• Keep a notebook handy to jot down physical descriptions of unfamiliar birds.
• Listen for distinct calls or songs to identify birds hidden in trees or brush.
• Check the live digital map on the official website to see global results in real time.