In recent decades, many organisms, especially those that are highly mobile, have been expanding their natural range in response to humankind’s modification of the ecosystem, and in a few cases, due to natural random events (storms, etc).
Here in the Western Cape of South Africa where I live, there have been a few notable examples of species (especially birds such as the Hadeda Ibis) that did not historically occur in the region, but have since expanded and become established from their original core range in the northern and eastern parts of the country.
We all know about exotic, invasive species; that’s not the intended topic here. Instead, I would like to hear about species which are native to your country that have increased in numbers and expanded into new areas.
For many of us, we can remember a time where these species were not present, but over the years started to notice these arrivals more and more, until they almost seemed to be everywhere! It’s quite the interesting experience.