Around 1,600 snow geese dead as new strain of bird flu spreads in Colorado

A new strain of highly pathogenic avian influenza — commonly called bird flu — has killed around 1,600 snow geese in two separate areas of Colorado since November, according to state wildlife officials.

​A new strain of highly pathogenic avian influenza — commonly called bird flu — has killed around 1,600 snow geese in two separate areas of Colorado since November, according to state wildlife officials.