Analysis of information sources in references of the Wikipedia article "How to Build a Dinosaur" in English language version.
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Let's use the ivory-billed woodpecker as an example. […] it is generally thought to have gone extinct […] although there have been many claims of sightings, including one that was published in Science on June 3, 2005. Earlier that spring […] I was planning this book with my coauthor, Jim Gorman […].