by Dish Staff
In his recent book “Lost Animals: Extinction and the Photographic Record,”Errol Fuller, a British author, argues that an “additional factor” must have been at work in the species’ extinction, because “in a land as vast as the United States there can be no mopping-up hunting for a species as small as a pigeon.” (Fuller’s book contains a grainy and not particularly flattering photo of Martha standing in her cage in Cincinnati.)
Some have argued that the “additional factor” was deforestation; by this account, it’s no coincidence that the passenger pigeon went extinct right about the same time that land clearing in the eastern U.S. reached its maximum extent. Others speculate that the passenger pigeon was one of those animals that require great densities to survive.
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