Yellow-bellied Sapsucker,,
continuedNesting and reproduction: Male and female show strong territorial fidelity year after year.
Clutch Size: 5 to 6 eggs range from 3 to 7.
Incubation: Both parents incubate the eggs for 12 to 13 days.
Fledging: Nestlings leave the nest after 25 to 29 days. They are fed insects, often mixed with sap, by both parents. The young begin feeding on sap in about 2 weeks and stay with the adults for several more weeks.
Nest: A new cavity is excavated each year and takes about 3 weeks to complete. The same tree is frequently used in subsequent years.
Status in Tennessee: The Yellow-bellied Sapsucker is fairly common across the state during the winter, but is an extremely rare breeder. Tennessee is at the southern limit of the breeding range and it is generally found between 3,400 and 4,600 feet elevation in the high mountains of Johnson, Carter, Unicoi and possibly Greene Counties.
The Yellow-bellied Sapsucker is listed as a bird In-Need-of-Management in the state due to its limited breeding distribution. The number of breeding pairs of the Yellow-bellied Sapsucker has declined in recent years and there have been few recent breeding season records.
Dynamic map of Yellow-bellied Sapsucker eBird observations in Tennessee

Fun Facts:
The isolated population of Yellow-bellied Sapsuckers in the Appalachian Mountains of Virginia, Tennessee, and North Carolina is considered a distinct subspecies called the Appalachian Yellow-bellied Sapsucker, Sphyrapicus varius appalachiensis.
The Yellow-bellied Sapsucker is the only migratory woodpecker in eastern North America. Some individuals spend the summer in the southern part of the breeding range but the majority travel to Central America. Females tend to migrate farther south than do males.
Ruby-throated Hummingbirds appears to have a close relationship with sapsuckers. They sometimes place their nest near a tree with sap wells and either feed on the sap or the insects that are attracted to the sap. They may even time their migration to coincide with that of sapsuckers.
As with other species of woodpecker, the nest cavities that Yellow-bellied Sapsuckers excavate often provide nesting or roost sites for other species of birds and even some mammals (e.g., northern flying squirrel) that cannot excavate their own cavities.