Christmas Bird Count Summary and Analysis

Geographic and Temporal Analysis of Winter Bird Populations

The Christmas Bird Count provides critical information on wintering bird population abundance, distribution, and change over time. Here, we provide maps that allow users to access bird abundance data from the CBC. Results are presented as both large-scale maps of average, effort-adjusted abundance, and as maps that allow users to access all information available for any location in North America.

Wintering Distribution Maps

The Wintering Bird Distribution Maps are based on average effort-adjusted counts from The Christmas Bird Count, 1959 - 1988

Programs and Analyses Developed by:

John R. Sauer
Patuxent Wildlife Research Center
12500 Beech Forest Road
Laurel, Maryland 20708-4039 USA
Telephone: 301-497-5662 Fax: 301-497-5666