Christmas Bird Count
Volunteers have been counting birds
on the CBC for over 100 years, and their contributions represent
a tremendously valuable resource for learning more about bird
behavior and bird conservation. These output tools are designed
to give you access to the data collected by the tens of thousands
of CBC volunteers. A lot has happened to early winter bird
populations and distributions in the last 100 plus years,
and the Christmas Bird Count is an invaluable resource to
discover those changes. These tools allow you to ask just
about any question you want of the entire CBC database. Take
You can make maps of bird distribution, construct graphs of
species trends over time, or see the raw count data. See what's
happened on your count over time; look up your favorite species;
many more discoveries await! Please be aware that the common
names of many bird species have changed over time. In order
to view all of the data for certain species, you will need
to query for each "historical" name individually.
Currently our CBC historical database is undergoing another
round of proofing of the data. A large dataset such as this
requires continual proofing, and we welcome any reports of
To learn the proper citation format for data viewed through
the CBC database and a list of scientific articles based on
CBC data, see the CBC bibliography
page. Thank you for your participation.
Please note: To use these CBC tools you will need Netscape/Internet
Explorer Version 4.0 or higher.
For questions, comments or to report problems please contact us.
Select from our options below to access Christmas Bird Count