Cranes gather during the migration season on a foggy morning at Hula Nature Reserve, in northern Israel November 17, 2020. REUTERS/Ronen Zvulun An outbreak of avian flu has killed more than 5,000 migratory cranes in Israel, prompting authorities to declare a popular nature reserve off-limits to visitors and warn of a possible egg shortage as local poultry are culled as a precaution. “This is the worst blow to wildlife in the country’s history,” Environment Minister Tamar Zandberg tweeted as rangers in hazardous material suits collected carcasses of cranes from the lake of northern Hula Nature Reserve and outlying marshes. Hundreds...