November seems to have run its course very quickly. The first few snowfalls have whitened the landscape, though mild weather still returns often enough to melt it away. Thanksgiving has come and gone. Christmas now looms. A fresh coating of light snow from some unsettled weather this past weekend gives the lawn outside the appearance of winter, even though technically it’s still late fall and not all of the leaves have gotten raked up.
A morning walk several weeks ago turned up this interesting discovery.
A fallen branch from an old beech tree shows a series of holes drilled into the bark. This is the work of a type of woodpecker called a sapsucker. In New Hampshire, it’s the yellow-bellied sapsucker which abounds.
Like other woodpeckers, it feeds on insects, berries and fruits, but it derives its name from its habit of drilling neat lines of holes in live trees and feeding on the sap that oozes out. Healthy trees can tolerate the minor damage caused by the birds, though sickly ones may eventually succumb if the damage is significant enough. For the most part, these little holes, or sapwells as they are sometimes called, can serve a beneficial purpose. Other birds, insects and small mammals like squirrels will also feed on the oozing sap, exploiting an important food source.
The sapsucker nests in cavities they excavate in tree trunks. Once the nestlings are raised, other birds such as swallows and bluebirds will make use of the ready made holes for their own young.
Because of these modest but helpful benefits, sapsuckers are regarded as a keystone species in the northeastern woods of North America. If you’re interested in seeing these small birds, they will frequent bird feeders and appeciate suet placed out for them. So keep an eye peeled for them this winter.
Have a happy holiday season.