Yup, they seem to quiet down activity in the summer, and then have really picked up again this fall. I would say a rough estimate would be about 12" increase in height since last year. The brook still breaches the dam after rain events, but generally it has harnessed a lot of water.
We have an older established beaver
pond from approximately 2003 that is a masterpiece, photos below...satt. photo shows
pond at bottom left. It is just over 4 acres in size. The drop below this dam is approx 20', from there theres a lovely pool with a secondary dam that flows into the brook. There are 2 colonies in this pond, and they are constantly adding/repairing the dam. They even use small white spruce
trees to the shock of most
local folks (they didn't believe me ..lol). The riparian and wildlife activity here is incredible, on a late spring morning the birdsong is borderline deafening. The white lillies are
native species and showed up on their own.
This pond is about 600 meters from our homestead, the smaller one approx 200 metres downhill.