According to recent research, fifteen species (of a total of 383 species) of piciform birds are classified as Critically Endangered, Endangered, or Vulnerable, at an extremely high, very high, or high risk of extinction. Another twenty-eight species are classified as Near Threatened. Experts on the birds warn that even though fewer than 4 percent of the birds are threatened, continued loss of habitat greatly harms the ability of the birds to reproduce and live. Decreased numbers of pici-formes have also occurred due to hunting and capture for pets and other human activities. In fact, collecting of some species for museums is believed to have contributed to the extinction of some of those species.
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