You searched for: Access Public Remove constraint Access: Public Subject Biology and Ecology Remove constraint Subject: Biology and Ecology Place Nebraska Remove constraint Place: Nebraska Place Arkansas Remove constraint Place: Arkansas Data type Line Remove constraint Data type: Line
1966. Patuxent Wildlife Research Center. This line shapefile portrays the current routes used for conducting Breeding Bird Surveys in the lower 48 States. This layer is part of the 1997-20... National Atlas of the United States.