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A froggy night in the vernal pool

The highest vernal pool in the town forest; about 880'. April 7, 2010

The highest vernal pool in the town forest; about 880'. April 7, 2010

There was still ice on the vernal pools in the Town Forest when I was there in March, and tonight’s visit was planned then.  It went more or less as I had hoped.

Wood Frog egg mass in the vernal pool, April 7, 2010

Wood Frog egg mass in the vernal pool, April 7, 2010

It rained today in the late afternoon and evening, but it was just misty as I climbed the steep ridge east of Upper Plains Road at 8:00 PM.  I could hear lots of spring peepers calling behind me even from the top of the ridge, and when I crested the ridge, I could also hear them in front of me.

Predaceous diving beetle in vernal pool, April 7, 2010

Predaceous diving beetle in vernal pool, April 7, 2010

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There were several peepers calling in the vernal pools between the ridge and Bryant Mountain, and a few wood frogs as well.  I quickly found some wood frog egg masses, but only in one place at the deepest part of the pool.  About 15 separate masses were attached to branches in 5 inches of water, all within a few feet of one another.

Male spring peeper calling at the vernal pool, April 7, 2010.

Male spring peeper calling at the vernal pool, April 7, 2010.

There were some handsome predaceous diving beetles (probably Acilius mediatus) swimming around the eggs.  I saw one wood frog, and on a mossy island found a pair of spring peepers who I interrupted to photograph.  One of them (the male) was calling and puffing out its throat, the other was just listening (nevertheless, probably a female).
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I had to put the camera away and don raingear for the walk out.  I lost the route and stumbled upon a porcupine den I had never seen before.  I am not sure I could ever find it in the daylight.

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