Israeli researchers have found that droppings from turkeys, chickens and other poultry could be a viable alternative to coal as energy source.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/poultry-droppings-could-be-next-alternative-fuel-%E2%80%94-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/premium-times-nigeria
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/alternative-fuels
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/poultry
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/israel
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-energy