Summary: 2007. Or, it could be significantly more complex: all records of Dendroica warblers observed above 1000 feet elevation in Ohio or Pennsylvania or West Virginia between 1986 and 2006. Several of the search parameter controls appear as side-by-side boxes (illustrated at right). On the left is a list of all the search terms you can choose. If the list is very long and you
Image Dimensions: 350 x 176
Image originally found here.