The email came the night of March 15 from Lisa, our lookout and Herrontown Woods neighbor, who said that frogs were crossing Herrontown Road in abundance, headed towards the vernal pools in Herrontown Woods. Road crossing is risky for the frogs, and there's talk of working with the town next year to warn motorists to keep an eye out when traveling that section during those spring nights when the frogs are moving en masse.
The frogs are having a good time in rain-soaked Herrontown Woods this spring. This vernal pool, in a depression left by a blown down tree, is one of two just 100 feet down the red trail from the main parking lot off of Snowden Lane. The wood frogs will probably dive down when you approach the pool, but stand still and soon they will pop back up, and float there in a relaxed sprawl. One of the clusters of eggs is denser than the others, which means it was more freshly laid. The eggs soak up water and expand, and when visited a day or two later looked like all the others.
My friend Fairfax sent a link to a good primer on frog egg identification.