Best Friends in Nature: Heron & Beaver Edition

Heron & Beaver

Heron & Beaver, photo by Corinne Schwarz

Here’s a cool photo from May of 20111 that I never featured for some reason. That reason might have been so I could link to this article from the Birdwatchers General Store in Cape Cod about the symbiotic relationship between beavers & blue herons. It says in part:

It is thought that the Bay State’s famed naturalist, Henry David Thoreau, never saw a Great Blue Heron nest in Massachusetts. Why? It’s partly because there were no beavers living in MA during Hank’s lifetime. Way back in the 1700s, unregulated cutting eliminated the trees beavers needed for survival.

…Today, beavers are once again thriving in MA. That’s not only great news for anyone who enjoys seeing beavers, but it’s great news for Great Blue Herons as well.

I think we all know how beavers operate. They find a secluded stream, cut down a few trees and dam it up. The area behind the dam becomes flooded and turns into a beaver pond. Why do beavers need to go through all the work to build their very own pond? The beavers create a pond so they can have underwater access to their lodge, even when everything is frozen in the winter. However, the newly built pond often entraps large trees, which eventually drown and die. Dead trees growing out of the center of a pond may look eerie to us, but they are magnets to herons. The dead trees provide excellent platforms for the birds to build their nests on. In addition, the water prevents terrestrial predators from munching on the eggs and babies. Between the swampy setting, the dead trees, the bulky stick nests and the gangly herons, the whole scene looks a Gothic nursery, but the birds love it.

Read on for lots more, and for more about these two species, see Know Your Michigan Birds: Great Blue Heron and Castor canadensis, the American beaver on Michigan in Pictures.

View Corrine’s photo background bigtacular and see more in her Water Wheel slideshow.

More spring wallpaper and more “Best Friends in Nature” on Michigan in Pictures.

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