This was not only place where treefrogs were calling from, but it was one of the few places where they were calling. No egg sacs seen but I am monitoring the ditch.
Interestingly, this same ditch is one of the first ditches where I heard them calling in the spring and the first where I saw egg sacs deposited.
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Returned to site on Oct 24th. No egg sacs present, and no calling from ditch. Male frogs with wrinkly throats however were found under almost every piece of debris I flipped (none vouchered).
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Returned Oct 31st. Found two egg masses, see record 210.
Update Nov 5 2009: Updated elevation via GPSVisualizer