Nest Boxes

It is that time of year again, time to empty the nest boxes. I empty the boxes in the fall on the first of October and fill them with wood shavings every spring on March 1st. Emptying and refilling them annually reduces the parasite load, thus, reducing risk for the birds.

This spring I purchased two additional nest boxes, bringing the total to five. I placed the two new nest boxes in the wooded area at the bottom of the slope at the back of our property. Additionally, I moved two of the other nest boxes so that there was greater spatial separation between all of the nest boxes.

Despite the additional nest boxes, only two were occupied this year. Again, a pair of White-breasted Nuthatches (Sitta carolinensis) took up residence in a nest box and raised a clutch of chicks. That nest box was occupied last year by a pair of nuthatches so I wonder if it is the same pair.

A white-breasted nuthatch on a tree
White-breasted Nuthatch. By DickDaniels (http://carolinabirds.org/) – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=18267531
The nest box used by the nuthatches
The nest box used by the nuthatches.
Nuthatch nest in a nest box
A nest made by Whte-breasted Nuthatches

A nuthatch started building a nest in the other large nest box but abandoned it after a week. I don’t know if it was chased off by another nuthatch or if it moved to the nest box that was occupied this year. Come spring, I intend on moving the abandoned nest box further away from the other large nest box in hopes that I might have two nesting pair of nuthatches next year.

An abandoned nuthatch nest
A nuthatch started and then abandoned this nest.

No Black-capped Chickadees took up residence in any of the nest boxes this year. However, I am confident a pair of House Wrens (Troglodytes aedon) occupied one of the new nest boxes located in the wooded area of our property. I didn’t observe them entering or leaving the nest box. However, they were frequently nearby, I observed them on the nest box, and they made a raucous whenever I or Lizzie were near the nest box. (Lizzie, for her part, ignored them.)

House wren on a branch
House wren. By Christopher Eliot from Brooklyn, NY, USA – House Wren, Troglodytes aedon, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=30622363
Small nest box
The nest box occupied by the house wrens
House wren nest in nest box
House Wren Nest

The other new nest box was occupied by two mice when I opened it up. From the looks of it, they had not been in there for long as there was no nesting materials beyond the wood chips I had filled it with in the spring. They ran off before I could take a picture or identify them. Lizzie had a fun time hunting them in the brush pile they scurried into. She caught and killed at least one. I wandered off before I saw if she caught the other one.

Nest Boxes

Three years ago, I bought a nest box and placed it on a tree near our garage. It was a nest box intended for woodpeckers and my hope was that a woodpecker would use it. Despite having plenty of woodpeckers frequenting our yard every day, they didn’t use the nest box. Instead a pair of White-breasted Nuthatches (Sitta carolinensis) took up residence in the nest box and raised a clutch of chicks.

Inspired by that family of nuthatches, I bought another nest box and placed it on a tree outside of our dining room. I was hopeful we would watch nuthatches raise a family while we enjoyed our dinner. A pair took up residence in the nest box and laid a clutch of four eggs. Unfortunately, a house sparrow (Passer domesticus) killed all the eggs, threw them from the nest box and claimed the box for itself.

When I discovered this, I was livid. Researching house sparrows, I learned they are an invasive species introduced from England and are known for taking over nest boxes and displacing native birds, in particular, blue birds.

I also learned I simply needed to narrow the opening to the nest box. House sparrows don’t tolerate openings that are 1 ΒΌ-inch in diameter whereas native song birds such as White-breasted Nuthatches and Black-capped Chickadees have no issue with an opening that small. To displace the unwelcome occupant, I opened the access panel to the nest box, dumped the contents and tilted it at an angle so that the house sparrow could not build a nest in it. It returned daily with nesting materials but all fell out to the ground. I then purchased the appropriate constrictors and attached them to the two nest boxes I had, preventing the house sparrow from entering.

This year, much to our delight, the nuthatches came back to raise a clutch of four chicks in one of the nest boxes. It was a joy to see the chicks following the adults around from tree to tree, learning how to forage for food.

A picture of a nest box containing a nest.
A nest box containing a nest in it.

I have a yearly schedule for the nest boxes. I empty the boxes in the fall on the first of October and fill them with wood shavings every spring on March 1st. Emptying and refilling them annually reduces the parasite load, thus, reducing risk for the birds.

We now have three nest boxes, this year one was occupied a Black-capped Chickadee family and another was used by a nuthatch family. The third was too close to another box, so, it remained unoccupied. I moved it further away this fall, I hope it will to be occupied next summer. If all three boxes are occupied next year, I’ll buy another nest box and place it in the other corner of our yard. With luck, in a year or two, we’ll have four families of song birds living in our yard.

Visitors to Our Bird Feeders

There are two bird feeders hanging under the eaves outside of our living room, one for seed and the other for suet. I placed the feeders there so that we could enjoy the coming and going of birds as fed. I recently installed a game camera to photograph the birds that frequent those feeders. While I was happy for the photographs of the birds, I was disappointed with the quality of said photographs.

Black-capped chickadees (Poecile atricapillus) are year-round visitors to our feeders and a favorite bird of mine. They usually dart in, grab a seed, and dart off as quickly as they came in.

A picture of a Black-capped chickadee (Poecile atricapillus) on a bird feeder
A black-capped chickadee (Poecile atricapillus).

American goldfinch (Spinus tristis) are beautiful summer visitors. Unlike chickadees and nuthatches, goldfinches tend to hang out on the feeder for as long as it takes to eat their fill.

A picture of an American goldfinch (Spinus tristis) on a bird feeder.
An American goldfinch (Spinus tristis).
A picture of an American goldfinch (Spinus tristis) on a bird feeder.
An American goldfinch (Spinus tristis) .
A picture of an American goldfinch (Spinus tristis) on a bird feeder.
An American goldfinch (Spinus tristis).

White-breasted nuthatches (Sitta carolinensis), like the black-capped chickadees, are year-round visitors. Also like chickadees, nuthatches dart in for a seed and then quickly fly off. Nuthatches are the upside-down bird. They can frequently be seen walking upside down along tree trunks.

A picture of a white-breasted nuthatch (Sitta carolinensis) on a bird feeder.
A white-breasted nuthatch (Sitta carolinensis).
A picture of a white-breasted nuthatch (Sitta carolinensis) on a bird feeder.
A white-breasted nuthatch (Sitta carolinensis) on a suet bird feeder.