Thirty years of the Rockwood Christmas Bird Count, 1975-2004 (requires Adobe Acrobat Reader)
This report should be cited as: Craves, J. A. 2006. Thirty years of the Rockwood Christmas Bird Count, 1975-2004. Report to the U.S. Fish Wild. Ser. Great Lakes Coastal Program. East Lansing, MI. 37 pp.
Figure 1(black and white, PDF), or download color TIFF file
Summary Data
Trends and patterns: Canada Goose (Figure 2), Mute Swan (Figure 3), American Black Duck (Figure 4 and Figure 5), Canvasback (Figure 6), Cooper's Hawk and Sharp-shinned Hawk (Figure 7), Ring-billed Gull (Figure 8), American Crow (Figure 9), American Tree Sparrow (Figure 10). Figure captions are here.