Detroit River International Wildlife Refuge: inventories

Thirty years of the Rockwood Christmas Bird Count, 1975-2004

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.

Introduction (pdf)

Figure 1 (black and white, PDF), or color (TIFF file )

Methods (pdf)

Results and Discussion (pdf)

Summary Data:

Table 1 (pdf)

Table 2 (pdf)

Table 3 (pdf)

Trends and patterns (figures are high resolution bitmap images): 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. (pdf).

Recommendations (pdf)

Figure 11 (bitmap image)

Literature Cited (pdf)

Figure captions (pdf)

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