Spring Peepers

It's been warming up around here the last few weeks, and tonight I heard the spring peepers calling. Spring is really here.

The nocturnal chorusis not produced by birds or crickets, but by small, thumbnail-sized tree frogs. They perch on grasses and sedges at the edge of ponds or roadside ditches. The males call mates with a shrill "peep peep peep". They are brown or gray color, well camouflaged amid the dead spring grasses. If the night is cold, Peepers retreat under leaves and stems.

Or so the books say. I've heard hundreds of them, but have yet to see one.