u/Admirable-Stuff-4183

I live at 4,000' elevation in the Mojave desert of California. We had about 5 days of representative weather for this time of year (i.e., hot), but for the most part, it has been a mild start to summer. My question: where are all of the bats?? My usual, daily exercise (or, really, lack of exercise) is to sit in a chair on my patio with a beverage at dusk and watch the bat-ballet ensue. They are my favorite part of late spring/summer/early fall. But--they haven't shown up yet. Does anyone know if there is a specific issue with them this year? They're usually out in force by now. Thanks!