The meadow vole records attached to Pennsylvania’s large forest parks come from their openings: grassy roadsides in Allegheny National Forest, old fields in Delaware Water Gap, and damp clearings at Ricketts Glen. Dense plants there provide both food and concealed runways.
October has the clearest record high, with smaller rises in July and September. Thinning cover and autumn fieldwork can expose trails or animals hidden during summer, so timing reflects visibility and observer effort as well as vole activity.
