![]() ![]() La película documenta trepadas, lanzamientos, vuelos y forrajeo de una hembra. Describimos una filmación de un individuo tomada en formato de 16 mm en color por William L. La especie mexicana Campephilus imperialis-el carpintero de mayor tamaño en el mundo-probablemente se extinguió a finales del siglo XX, sin que haya documentación conocida de la especie en vida. Human persecution and the logging of large pines for timber and of dead trees for pulp were likely principal factors in the extinction process of the Imperial Woodpecker. Interviews with local people indicated that Imperial Woodpeckers had disappeared from the region by 1960 and that they were killed by hunting and perhaps through poisoning instigated by logging interests. By 2010, the area had been logged multiple times. In 1956, the area was oldgrowth forest with abundant large and dead trees. The site was in coniferous forest in lightly undulating terrain at 2,700–2,900 m elevation. Following landmarks documented during the 1956 expedition, we identified and surveyed the film site in 2010. After allowing for possible inaccuracies in the frame speed of the film, we found that the Imperial Woodpecker had slow climbing strides and a fast wingflap rate compared with other woodpeckers. ![]() Trunks of perch and foraging trees were of the largest diameters available in this tree species. For perches and foraging the woodpecker used dead or recently dead Durango Pines ( Pinus durangensis). The film documents climbing strides, launches, flights, and foraging of one female Imperial Woodpecker. We describe a recently discovered 16-mm color film of an Imperial Woodpecker taken in 1956 by William L. The Imperial Woodpecker ( Campephilus imperialis) of Mexico-the largest woodpecker in the world-probably became extinct in the late 20th century, without known documentation of the species in life. ![]()
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