CLO110.gif (5042 bytes) Food Preferences in
White-winged Crossbill
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The map below illustrates observer estimates of cone crop abundance in areas where White-winged Crossbills were reported.

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Participants were asked to estimate the abundance of wild foods in their postal code. Wild foods were: cones, berries, and seeds. Individuals could rate the abundance of each wild food  as heavy, moderate, or low. Only reports with estimates of wild food abundance were used to generate the maps.

Greater than 78% of all White-winged Crossbill reports came from areas where the cone crop abundance was either moderate or heavy.

The pie chart shows what White-winged Crossbills were feeding on when not at bird feeders.

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Copyright 1998 BirdSource. All rights reserved.
Revised: March 25, 1998.