Locally adapted? These are our native bees, the typical bees we see unless queens or bees are bought in. A nice, hardy bee that doesn't over stretch itself and end up eating itself out of house and home, they do find an excellent variety of pollen too. Brood combs always contain a decent amount of stores, none of these frames of solid brood. They are frugal, my colonies all had around 15 litres of invert by the end of October, they've had no fondant added (apart from the nuc that didn't really need it) and they were all feeling heavy, still.
They are able to provide a honey crop even in bad years like 2020.