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Assessment and Update on the Northern Goshawk

Appendix A

Appendix A: Summary of Breeding Habitat Data for Northern Goshawks in Selected Areas of North America
LocationNNest Tree Height (m)Nest Tree dbh (cm)Mean Tree dbh (cm)Nest Height (m)Tree Density (no./ha)Canopy Cover (%)Source
Vancouver Island, BC*1632.969.7-14.3--1
Queen Charlotte731.481.6-20.7--2
Islands, BC*        
Kispiox Forest District, BC2328.955.1-16.4-70.83
Cariboo region, B.C.820.935.522.812.370151.94
central Alberta1722.630.419.714.9-77.45
Washington, Cascades1232.0-48.319.2-60.06
Washington, Olympics727.0-43.115.7-64.07
ne Oregon1234.065.0-15.0-81.08
n California1234.474.227.116.874976.99
nw California12439158212798810
se Idaho2626433114-7511
Mean-30.360.635.716.4576.371.7-

* Queen Charlotte Goshawk
1 McLaren 1997, 1998, 1999;
2 Chytyk and Dhanwant 1998, 1999;
3 Doyle and Mahon 1998;
4 Bosakowski and Rithaler 1997;
5 Schaffer 1998;
6 Fleming 1987;
7 Fleming 1987;
8 Bull and Hohmann 1994;
9 Saunders 1982;
10 Hall 1984;
11 Patla 1997.

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