Wood Duck Adventure

Who lives here?

Introducing the Wood Duck!

(Aix sponsa)

{A male wood duck on the left and a female on the right}

photo credit: Randolph Femmer

I wrote a couple of weeks ago about the Pileated Woodpecker and the importance of cavities. Wood ducks are one of the species that uses cavities made by pileated woodpeckers. However, wood ducks can also be induced to nest in artificial boxes.

Armed with this knowledge, an invitation from a landowner here in Muskoka, a cordless drill, a sharpie, and some wood shavings, a group of us headed out to see for ourselves if any nesting had taken place last spring on this property.

The incredible volunteers who accompanied me are none other than 3 of the Master Stewards from the Muskoka Stewardship Program. We were invited to this spectacular 100 acre property located in Muskoka to see if there had been any wood duck activity during the past year and prepare the boxes for this coming spring.

You see, wood ducks like to nest in cavities in wetlands because it makes it very difficult for predators to access their nests. These boxes are located in a 30 acre wetland. It's actually quite an amazing beaver pond. Normally inaccessible, the wood duck boxes had to be put up in winter and we needed the ice to be solid to change the material in the boxes for the coming spring.

Above: Paula unscrews the front of the box...you can see our shadows as we eagerly anticipate the contents of the first box!!

Female wood ducks often return to nest in the place where they were born. There is an increased chance they will use the boxes if they are not dirty from the previous year and also if the material inside is dry.

Our mission for the afternoon: clean out boxes, make observations on each one (amount of eggs inside, other animals that may have used it), and refill the boxes with new material. We also re-labelled the numbers on the 8 boxes from last year and assigned numbers to the 5 new boxes that were put up.

Inside each box the material is compacted down. There are often layers of broken shells and downy feathers. Notice the inside of the front piece that is sitting on the ground. The horizontal lines are carved in so the hatchlings can grab on to climb out before they fledge.

This box has quite a few shells and some feathers. In some of the boxes we could tell it was a wood duck because of the iridescent colour of the feathers.

A close up of the egg shell and some downy feathers.

Here is the crew, with our tools, in front of Box #5. Notice the oblong shape of the entry hole for the wood ducks. This shape is suited for them and is also big enough, but not too big. If you decide to put up boxes of your own, this is an important component. Also important is the forward slanted way they are affixed to the tree.

A beautiful day to get ready for spring and help the wood ducks have suitable nesting spots for when they return this spring. Perhaps we'll return next year to see how they did!

photo: Mike Sweet

Interested in building your own wood duck box?
Follow the same directions as the landowner whose property we visited!


Want to know more about wood ducks?
There are lots of websites:
Hinterland's Who's Who
House Construction Tips
Ducks Unlimited
The Wood Duck Society

Winter Visitor

Pileated Woodpecker

Dryocopus pileatus

This woodpecker was pecking away in our yard when we got home the other day! We can see he has been working on a couple of the coniferous trees in our yard by the fresh wood chips on the snow.

It really is neat to see a pileated woodpecker. They are large birds (up to 47cm tall!) and are quite striking with their red tufts atop their heads and white and black markings around their eyes and neck.

I've posted before about the importance of cavity trees in our woodlots. Pileated woodpeckers require snags (standing dead trees) for habitat, like the white spruce below. All the needles and much of the bark have fallen off. There are two in a row that are similar and the woodpecker seems to like them both!

There are also often wood-boring insects who are feasting on the dead tree, which in turn make a tasty feast for the pileated woodpecker. By eating large numbers of these insects, pileated woodpeckers also help to control insect populations that can damage valuable trees- commercially important or otherwise.

Pileated woodpeckers excavate cavities in snags that can be used for nesting and roosting. They are usually long oval or rectangle shaped holes in the tree. I went out the next day to see the work of this particular bird:

Pileated woodpeckers often abandon the cavities they create. These abandoned cavities make high quality nesting and refuge habitat for other species like wood ducks and squirrels.

Keep your ears open for the tapping of a pileated woodpecker this winter. If you can find where it is, you have a good chance of catching it at work- and helping to keep the forest healthy.

Managing Your Woodlot for Wildlife

This week at the Nature Quest Stewardship Series workshop Jan McDonnell, biologist at the Ministry of Natural Resources, spoke to the group about considering wildlife when managing your woodlot. Whether you have several acres or a few trees in your yard, there are some things to think about so that we keep habitat and food for mammals, birds, amphibians, and insects. Mike Walsh then guided us on a walk at the Bracebridge Resource Management Centre where we got to see some examples of what we talked about with Jan. It was a fantastic afternoon!

Mast Trees

Oak, beech, cherry, basswood, hickory, butternut and walnut trees all produce fruit that animals feed on. Acorns are some of the highest in nutritional value and are eaten by many animals. Trees that produce fruit also tend to be genetically superior so it's good to keep them on your property to provide the seed for new trees. In Muskoka, black bears eat beech nuts to gain weight for winter. Bears will climb beech trees to eat the nuts. It's easy to tell if a bear has been climbing a beech tree because the bear leaves claw marks on the smooth bark like in the picture below. Bears won't climb just any beech tree though- they actually don't feel safe up there. Somehow they know which have the best nuts and go for those ones.

Snags

Snags are dead trees that are still standing. They provide nesting, food, hunting and resting places for many wildlife species. They are often full of cavities (see last week's post) created by pileated woodpeckers. While these woodpeckers create and use these cavities, they leave after using it once to create another. Other animals like wood ducks, chickadees, tree swallows, and owls then use the cavities. Often snags have other holes from where the canopy of the tree has fallen to the forest floor.

Downed Woody Debris

Speaking of the forest floor, the area surrounding snags often has fallen branches. This material is called downed woody debris and it also has considerations for habitat and overall forest health. When this wood rots, it provides nutrients that help replenish the soils of the forest and help regeneration. Resist the urge to "tidy up" the forest by removing this valuable part of the ecosystem. Wildlife also keys in on these fallen logs. Winter wrens, mice, chipmunks and other small mammals find little nooks to hide in. The invertebrate life on a fallen log is truly amazing- centipedes, mites, and ants scurrying about, beetle larvae gradually chomping the tough wood and microscopic organisms taking the wood down to its basic components. Fungi and mosses thrive here too! Not only is this valuable habitat, it is a food source for larger animals.

Woodland/Vernal Pools

Woodland pools (also known as vernal pools) are seasonally wet areas in the forest. They are usually low-lying and shaded under the canopy. Some stay wet year round and others dry up around mid-summer. They are often filled by the spring run-off. Woodland pools are fragile ecosystems that provide breeding ground for many amphibians as they begin their lives. Since they are void of fish, they are safe places for these species. For example, in Muskoka, the spring peepers we hear as one of the first signs of spring beginning their lives in woodland pools. Want to learn more? Go to the Ontario Vernal Pool Association.

As landowners, it is our job to works towards a better understanding of the different species that use our property. Looking to the trees in our yards and woodlots can provide lots of hints! It's easy to maintain habitat for wildlife, doesn't usually cost any money, and enhances the health of the forest and overall ecosystem.

What kinds of habitat are in your woodlot??