Animal death mystery: 8k turtle doves fall dead in Italy with blue stain on beaks | Mail Online

• Blue stain believed to be sign of poisoning or hypoxia - lack of oxygen that is precursor to altitude sickness
• Cold weather and overbreeding blamed for deaths of two 2million fish in Chesapeake Bay
• Disease behind deaths of 100,000 fish in Arkansas River
• At least nine incidents of mass animal deaths across the globe
• Hundreds of confused birds plummeted to their deaths in multiple locations in the U.S.
• Rapid movement of Magnetic North Pole towards Russia may have caused bird deaths

http://www.dailymail.co.uk/news/article-1344913/Animal-death-mystery-8k-turtle-doves-fall-dead-Italy-blue-stain-beaks.html

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