Hi, Mr. Nature here, to shed a little light on something that may have perplexed you. I know it’s often puzzled me.
It’s winter, one freezing cold day after another–and then an unseasonably warm day comes along, and before you know it, there are houseflies buzzing around outside. How can that be? Where do they come from? ( https://www.abchomeandcommercial.com/blog/where-do-flies-go-during-winter/ )
Most flies have a lifespan measured in days, seven to ten. So the fly you see in February hasn’t been hiding out since Thanksgiving. But they do lay eggs before they die, and some of these eggs can hatch in the winter, if given the chance. And fly larvae may emerge from cocoons. Thing is, there are so freakin’ many flies, and they lay so freakin’ many eggs, that a few of them are bound to survive no matter how long and harsh the winter is.
Chances are that the adult flies you see outside on a warm day in January or February have been… well, hanging out somewhere in your house. Your home is heated, and insects who can get in have a decent chance of making it through a cold snap. And they do get in! Even if it’s just a tiny gap in your aluminum siding, to a bug it’s shelter from the cold.
I have to keep reminding myself that God would not have created flies if they didn’t somehow serve His purpose. In this case it’s kind of hard to know His purpose; but whatever that purpose may be, you can be sure He hasn’t forgotten it.