To avoid cold winters in North America, the entire population hundreds of millions of Monarchs — flies together thousand of miles to reach warmer climates.
They fly to a handful of sites in Mexico where the temperature and humidity are just right for them to cluster together and keep warm.
In our region, we usually see monarch butterflies between October and November when they migrate from Canada to their wintering grounds in Mexico.
The numbers of eastern Monarchs have plummeted over the past few decades and biologists are concerned they may be facing extinction.
There are many suspects, including loss of host plants, destruction of habitat, climate change, and increased pesticide use.
While any one of these factors could be problematic, taken together they may spell doom for monarchs.
Monarch butterflies depend on milkweed plants.
They lay their eggs on the milkweed plant because it is the only food the Monarch caterpillars eat.
Native prairie habitat, where milkweed typically grows, has disappeared to pave the way for urban growth.
People can give Monarchs a boost by planting milkweed in their yards or on their property. Several colorful varieties can be grown to provide Monarch caterpillars with the food source they must have to survive.
A large-scale citizen science project initiated in 1992 to help understand the dynamics of the Monarch’s spectacular fall migration through mark and recapture.
Several years ago, South Cove County Park became a Monarch way station and began tagging Monarchs on their way to Mexico. They now teach local residents how to tag Monarchs, and create butterfly way stations on their own properties.
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