Growing up in Missouri, I remember the American Robin being one of the most prevalent birds in suburban neighborhood. When I moved to Texas, I rarely would see a robin. In our prior Dallas neighborhood, we would occasionally see a couple of robins when walking the neighborhood. Only one year did we actually have a pair of robins in our own yard.
Similarly, in our new neighborhood, I occasionally see a pair of robins hopping around a neighbor's yard searching for worms, but it has not been a common sight. That changed this year as our blackberries started to ripen this summer. Once the berries ripened, we had four robins take up residence in our front yard, and they appear to be enjoying our blackberries immensely.
Consequently, our blackberry harvest has been noticeably smaller this year. Although we still have harvested a lot of blackberries, it has not been as big as last year. In reality, the decreased harvest may have something to do with how dry and hot it has been. Despite my additional watering, the berries just don't seem to be filling out as much as last year. However, I also think that the robins may be getting to a lot of the ripe fruit.
Last year, the mockingbirds were giving me a hard time with the blueberries but did not touch the blackberries. This year, in contrast, we had a nice harvest of blueberries, but the robins have been putting a dent in the blackberries.
We won't let it bother us because we enjoy having the robins in the yard. We just won't have very much blackberry cobbler and preserves.