Smithsonian Migratory Bird Center researchers have studied black-throated blue warblers at the Hubbard Brook Experimental Forest in New Hampshire for decades. This forest was set aside by the United States Forest Service in 1963 to serve as a laboratory for ecological research, allowing scientists to study the air, water, soil, plants and animals that make up a forest ecosystem.
By studying warblers at Hubbard Brook, SMBC scientists can add to the network of long-term ecological data collected in the experimental forest. Black-throated blue warblers are an ideal species to study, because they are still common in much of their range. They also build nests in low shrubs, so researchers can easily monitor their entire nesting process.