your sense of place

Photo © Keith Williams
Photo © Douglas Wipf

A New Outcome Code

Have you ever had a nest taken over by another bird, while the original nest was still active? This is commonly witnessed when an invasive species, such as a House Sparrow or European Starling, takes over the nest of another bird that was already in progress; however, it can also involve two native species (e.g., a native House Wren may take over a chickadee nest, as in the photo above). Now, you can report this result to NestWatch with a new outcome code, “Failure due to nest takeover by another bird.” If known, you can also report the bird species that took over the nest. 

Cornell Lab of Ornithology

Cornell Lab of Ornithology