Fairmount Park is a great spot to spend a couple of hours, warblers or not and I concentrated my search around Lemon Hill Google Earth ref; 39 58 17N 75 11 17W. My plan was to find a feature that might draw the warblers in. A small wooded hill beside the river seemed to be just the thing, but what do I know?
Lemon Hill is a subtle mount with its steeper slope rising from the river side. Once up on the top, the most obvious feature is the Lemon Hill Mansion. Roads describe a circular route of nearly a mile if you keep turning right while walking clockwise. American Barn Swallows and Northern Rough-winged Swallows were common and occasionally stopped for a break and a pre-nuptual tidbit.
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