That is clearly a troll response. Or a joke maybe? A trolling joke? I don't know you well enough to say.
I suppose it seems like trolling to unbelievers, but I stand by it.
Just this morning I heard a local expert explain: "
Due to climate change (warmer fall temperatures) and the presence of milkweed, overwintering monarch butterflies are breeding at Lake Merritt (Oakland, CA) when they would normally be sleeping through the winter."
Now, what made me suspect this local person was wrong?
Q. Why do morarchs migrate and not hibernate?
A. This is an excellent question! For some reason, monarchs have just not evolved to hibernate. Iit's a hard question to answer, because we need to know the evolutionary history of monarchs. We are quite sure that the ancestors of monarchs were tropical butterflies that could not survive long periods of very cold weather. When monarchs moved into areas that had cold winters, they never evolved the ability to tolerate these winters, and need to migrate to warmer locations.Many people think that monarchs evolved in the tropics, and just move north each spring to take advantage of all the milkweed we have in the summertime. Most other temperate insects can withstand the freezing temperatures of winter by entering a state called "diapause." Some do this as eggs, others as larvae, pupae or adults.
Journey North: Monarch Butterfly
And sure enough, the Lake Merritt Butterfly Whisperer concurs, " Our local Monarchs migrate to the central deserts (Mojave or Arizona) in February, then to British Columbia in late spring, returning to the Bay Area in the fall."
Butterfly Whisperer Brings Monarchs to Gardens and Lakeside Park - Gardens At Lake Merritt