sapsuckers

Sapsuckers are a group of woodpeckers in the genus Sphyrapicus, in the family Picidae. They are known for drilling sap wells into living trees to feed on sap, a resource complemented by insects that are attracted to the sap. In North America, four species are generally recognized: Yellow-bellied Sapsucker (Sphyrapicus varius), Red-naped Sapsucker (Sphyrapicus nuchalis), Red-breasted Sapsucker (Sphyrapicus ruber), and Ladder-backed Sapsucker (Sphyrapicus thyroideus).

Foraging behavior involves creating regular rows of shallow sap wells, usually in horizontal patterns around the trunk. Sap runs from these wells and is consumed by the bird, while the insects drawn to the sugary liquid provide additional food. Wells are made on a variety of tree species, including maples, birches, poplars, oaks, and pines; heavy tapping can injure trees and may invite disease or secondary pests.

Distribution and breeding: Sapsuckers inhabit forests, woodland edges, and urban or suburban parks across much of North America. Some species are migratory, while others are year-round residents in parts of the west. They nest in cavities excavated in dead or dying trees; both parents typically incubate eggs and feed nestlings, with a clutch consisting of several eggs and a fledging period of a few weeks.

Conservation and ecological role: Overall, sapsucker populations are stable in many areas, though local declines can occur where forest habitat is altered or fragmented. Their tapping behavior creates cavities used by other species and can influence tree health and forest structure. They face natural predation and, in some human settings, may be regarded as pests in orchards or ornamental plantings.