From Birds and Blooms · Amy Grisak · · 1m
Christmas Bird Count: History and Impact
A 1900 bird census now involves 85,000 participants tracking species trends across the Western Hemisphere.
In brief
A 1900 bird census now involves 85,000 participants tracking species trends across the Western Hemisphere. The Christmas Bird Count, started in 1900, uses citizen science to monitor bird populations and conservation progress. Originally reported by Birds and Blooms.
Origins of the Christmas Bird Count
The Christmas Bird Count began in 1900 as a response to declining bird numbers and the feather trade.
“It was a period when scientists were concerned about declining bird numbers in general”
Early Participation and Scope
The first count involved 27 participants tallying 90 species across the northeastern U.S. and Canada.
Modern Participation and Reach
Today, 85,000 participants count birds in 21 countries across the Western Hemisphere from December 14 to January 5.
How the Count Works
Participants cover circular zones of 15 miles, recording sightings and travel details through eBird or manual logs.
Conservation Impact
The count tracks species like bald eagles and waterfowl, showing habitat improvements and conservation successes since the 1980s.
Why It Matters
The Christmas Bird Count provides long-term data for scientists to understand bird population changes and guide conservation efforts.
What to remember
The Christmas Bird Count, started in 1900, uses citizen science to monitor bird populations and conservation progress.
