By Will Atwater Mid-September signals the soon-to-arrive familiar fall rhythms: leaves preparing to turn from green to gold and crimson, pumpkin spice flavors reappearing on menus and migratory birds filling the skies. Along with these seasonal markers comes a more troubling one — the likely spread of highly pathogenic avian influenza, or bird flu. Experts […] The post North Carolina watches for signs of bird flu as fall migration begins appeared first on North Carolina Health News.