The first warbler benefits from spruce budworm outbreaks when the caterpillars provide abundant food. The second type of warbler has a high-pitched, almost inaudible song that drifts through boreal forests of Canada.
Powdermill Nature Reserve’s avian research center is part of Carnegie Museum of Natural History’s biological research station in Rector, Pennsylvania. The research center operates a bird banding station, conducts bioacoustical research, and performs flight tunnel analysis with the goal of reducing window collisions.
