Dr. Roy Schestowitz December 19, 2021 9:07am ● NEWS ● #MexicoNewsDaily #Nature #Wildlife ☞ #Monarchbutterfly numbers are up this year at Mexico’s largest sanctuary https://mexiconewsdaily.com/news/monarch-butterfly-numbers-up-sanctuary/ Monarch butterfly numbers are up this year at Mexico's largest sanctuary Roughly 130 - 150 million monarch butterflies have reached the El Rosario sanctuary in Michoacán, up about 30% over recent years.