It's not such a weird topic to me. Here's why.
This year we have had two unusual populations appear. It is not that they are new species in this area so much as there appears to have been a population explosion, and I do mean explosion.
Coast Range fence lizard (sceloporus occidentalis bocourtii) is and has always been indigenous to this area. This year, they are everywhere outdoors, all the time. I see babies and adults and everything in between (~1" to >6"). When you have one or two or see your first baby lizard, they are "cute". When you have a hundred, they become a nuisance and I wonder what health hazards they pose.
House fly populations have also exploded this year in unprecedented numbers. I have no idea what caused this but they are also everywhere, all the time. Any time you open a door, you risk having them invade the indoors. This has gotten so bad, I have set out traps for the. In less than a week, the traps are so full, I'm thinking I need to replace them.
By the way, fly traps work but disposal is another matter altogether. They are gross and smelly!
Any ideas on how to eliminate the lizards? How do you kill lizards, poison bait? Why so many flies?