The Western population of the monarch butterfly has declined to a near-record ... population gathers to pass winter before fanning out across the West from Arizona to Idaho in spring.

In 2022, the WWF reported the eastern migratory monarch butterfly population has decreased by more than 80% over the last three decades. UGA research scientist Andy Davis said in an October ...

In a turn of events, the eastern monarch butterfly population — which was ... If you do have tropical milkweed, make sure to cut it down on November 1 and don't let it grow until March 1 ...