Male Yellow-bellied Sapsucker
As mentioned yesterday already we had some early migrating bird arrivals this week. The first male House Wren was here eleven days earlier than 2022 and we saw a couple Chipping Sparrows, almost three weeks ahead of last years arrival date. Both species will raise their offspring here.
But the biggest surprise came yesterday when a male Yellow-bellied Sapsucker showed up and visited our trees several times during the day. We are near the southern edge of their breeding range, which goes all the way up to northern Canada. The Yellow-bellied Sapsucker is the only woodpecker in eastern North America that is completely migratory. We had a successful brood here in our woods in 2014 and the last time I photographed this woodpecker was in April 2018.
Sapsuckers feeding a little different than any of the other six woodpecker species we have here in the Little Maquoketa Valley. The following is a quote from the CornellLab website https://www.allaboutbirds.org/guide/Yellow-bellied_Sapsucker/lifehistory#food :
As the name indicates, sapsuckers rely on sap as a main food source. Just like people who tap maple trees to make maple syrup, these birds drill their wells in early spring. Sapsucker wells are neatly organized, with several holes drilled in horizontal rows. The bird first drills narrow, circular wells into the tree’s xylem—the inner part of the trunk—to feed on sap moving up to the branches in early spring. Then, after the tree leafs out, the sapsucker begins making shallower, rectangular wells in the phloem, the part of the trunk that carries sap down from the leaves. This sap can be more than 10 percent sugar. These phloem wells must be continually maintained with fresh drilling, so the sap will continue to flow. Sapsuckers tend to choose sick or wounded trees for drilling their wells, and they choose tree species with high sugar concentrations in their sap, such as paper birch, yellow birch, sugar maple, red maple, and hickory. They drill wells for sap throughout the year, on both their breeding and wintering grounds. In addition to sap, Yellow-bellied Sapsuckers also eat insects (mostly ants) and spiders, gleaning them from beneath a tree’s bark like other woodpeckers. And at times they perch at the edge of a tree branch and launch after flying insects to capture them in midair, like a flycatcher. Sapsuckers are also attracted to orchards, where they drill wells in the trees and eat fruit.
In my second photo you can see how the sapsucker has its bill in a hole at a tree branch, he obviously had drilled. There is also a hole visible with sap pouring out in the first image. It is to the left of the bird’s foot. You may not see that if you read this blog post on a device with a small screen. Beside being very happy about this photo opportunity I just thought it is very interesting how these woodpeckers time their migration with the arrival of spring and sap starting flowing in the trees here in eastern Iowa.