Invasive Species Threaten Parks
No, it’s not the zombie apocalypse. This threat is from invasive plant and animal species. Some are just as scary, gruesome and strange as fantasy creatures. But unlike the fictional walking dead, these invaders can do actual harm. Take the brown-headed cowbird. Cowbirds originally lived on the Great Plains, following bison. Because their food source was mobile, cowbirds didn’t have the luxury of sitting on nests to raise their young. Instead, they developed the strategy of laying eggs in the nests of other birds, who then unwittingly feed and raise them. To ensure they do, cowbirds often remove the host bird’s own eggs. They're just one case of the silent ongoing battles between natives and invasive species in Sonoma County.