California condor's shocking recovery

• Autores: Penny Sarchet
• Localización: New scientist, ISSN 0262-4079, Nº. 3035, 2015, pág. 12
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • It should be hard to miss California condors--they are North America's largest birds, with wingspans of up to three meters. But lead poisoning from gun ammunition nearly drove them to extinction in the 1980s. Now, electric shock training and surgery are helping to re-establish these giant birds. In the late 1980s, the last few individuals were taken from the wild to be bred in captivity. Since 1992, there have been multiple reintroductions to the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico