Christmas Bird Counts for 2018 - 2019

a winter tradition

The Christmas Bird Count began in 1900 when Frank Chapman suggested that teams change their tradition of shooting birds as a Christmas sport to simply taking a census of them. In the ensuing years, the idea has grown and the CBC has become a winter tradition for many birders across the country with friendly competitions among states and even circles. As the first citizen science project, the CBC has captured enough data over the years that results are now used by various scientific organizations to document changes in bird populations. For more history and a neat video, check out the National Audubon's page on the CBC history. Don't forget to add your count information the the IOU calendar.

All CBC counts must be held during one calendar day during the period of 14 December to 5 January. These are the CBC dates for this season. Click the Select button to see the details.

The following documents may be downloaded and used for your count:

 CBC Species List  CBC Species Detail  CBC Report Form  CBC Documentation Form
View results from previous CBCs or check Iowa Bird Life for a summary of Iowa's season.   

Bremer County CBC12/15/2018
Cedar Rapids Count12/15/2018
Sioux City CBC12/15/2018
Mason City CBC12/15/2018
Saylorville Reservoir12/16/2018
Iowa City CBC12/16/2018
Davenport CBC12/16/2018
Clinton-Savannah CBC12/18/2018
Princeton-Commanche CBC12/19/2018
Eldora-Union CBC12/20/2018
Humboldt CBC12/20/2018
Westfield CBC12/20/2018
Yellow River State Forest CBC12/20/2018
Northeast Madison County CBC12/20/2018
Western Mercer County CBC12/21/2018
Cedar Falls-Waterloo CBC12/22/2018
Decorah CBC12/22/2018
Des Moines CBC12/22/2018
Hamilton/Webster County12/22/2018
Andalusia-Buffalo CBC12/24/2018
North Linn Count12/27/2018
Union Slough NWR Christmas Bird Count1/3/2019
Neal Smith NWR CBC1/5/2019
Ida County 1/5/2019