Amphibian Migration Heat Map 2018

Spring is upon us! Here is a fun visual to see where and how things are moving thoughout the state. The below map shows the timing of spring-breeding amphibian migrations across Pennsylvania. Jefferson Salamanders, Spotted Salamanders, Four-Toed Salamanders, Wood Frogs, and Spring Peepers will be tracked from Febuary 1 - May 31.

The most recent records will appear " brighter and hotter" than older entries.