Saturday, February 20, 2010

continuing decline of Red-headed Woodpecker

Much study has been devoted to the decline of the Red-headed Woodpecker. It continues to decline in some areas of its range in North America, although declines may have leveled off in some other regions. See a 50-year graph of CBC records for this species in the United States as a whole, below.

For more about this species, see the following online resources:

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