The eastern phoebe (Sayornis phoebe) nests on or near human-made structures, typically under eaves, bridges, and porches, and it is one of the first migratory songbirds to return to North America in spring. Its cup-shaped nest is made of mud, moss, and plant fibers, and the female does most of the construction and incubation.
Species Background
The eastern phoebe is a small, drab flycatcher in the family Tyrannidae. It breeds across eastern and central North America, from the Atlantic coast to the Great Plains, and winters in the southeastern United States and Mexico. Unlike most flycatchers, the eastern phoebe is a true migrant, leaving its breeding grounds entirely in the fall. Its name comes from its distinctive song, a raspy “fee-bee” that is often one of the first bird calls heard in early spring. The species is closely related to the black phoebe and Say’s phoebe, but it is the only one that regularly nests in the eastern half of the continent.
Nest Site Selection
Eastern phoebes are unusual among North American songbirds because they prefer to nest on vertical surfaces rather than in trees. In natural settings, they use ledges on cliffs, rocky outcrops, and the entrances of caves. Today, they are far more likely to nest on human structures, including:
- Under the eaves of houses and barns
- On porch lights, rafters, and window ledges
- Under bridges and culverts
- Inside open sheds, garages, and boathouses
- On the beams of docks and boathouses
The female chooses the site, often returning to the same territory year after year. A pair may reuse a nest for a second brood in the same season, but they usually build a fresh nest the following year.
Nest Construction and Appearance
The nest is a bulky, open cup made of mud, moss, grass, and leaves. The female does the building, while the male follows her and sings. She collects mud in her bill and mixes it with plant material to form a sturdy base. The inner cup is lined with fine grass, hair, and feathers. The nest is typically 4–6 inches across and 2–3 inches deep, and it is often placed on a flat surface with a slight overhang for protection. The mud dries hard, making the nest durable enough to last through the season.
Eggs and Incubation
A typical clutch contains 3–6 white eggs, sometimes with faint speckles. The female incubates the eggs for about 12–16 days. During this period, the male brings food to the female. The eggs hatch asynchronously, meaning the young do not all hatch on the same day. The female broods the nestlings for the first few days, and both parents feed them. The nestlings fledge (leave the nest) about 15–17 days after hatching. After fledging, the parents continue to feed the young for another one to two weeks.
Breeding Season and Multiple Broods
Eastern phoebes typically arrive on the breeding grounds in late February to April, depending on latitude. They often raise two broods per year, sometimes three in the southern part of their range. The first clutch is laid in April or May, and the second in June or July. The female may reuse the same nest for the second brood, but she often adds fresh mud and lining. Because they nest early, phoebes are vulnerable to late spring snowstorms, but they are resilient and can re-nest if a clutch fails.
Common Problems and Misconceptions
One common misconception is that eastern phoebes are cavity nesters like bluebirds or chickadees. They are not; they build open cup nests on ledges. Another is that they are “dirty” birds that spread disease. In fact, phoebes are beneficial insectivores, eating flies, beetles, wasps, and mosquitoes. Their nests can sometimes cause minor issues when built over doors or walkways, but the birds are harmless. If a nest is in an inconvenient spot, it is best to wait until the young fledge before removing it. Eastern phoebes are protected under the Migratory Bird Treaty Act, so disturbing an active nest is illegal without a permit.
Comparison with Other Phoebes
The eastern phoebe is often confused with the black phoebe (Sayornis nigricans) and Say’s phoebe (Sayornis saya), but their ranges rarely overlap. The black phoebe is darker, with a black head and breast, and lives in the western United States and Mexico. Say’s phoebe is paler, with a gray-brown back and a buffy belly, and breeds in the western Great Plains and the Southwest. The eastern phoebe is the only one with a yellowish belly and a darker head that contrasts with a white throat. Its habit of pumping its tail up and down while perched is a key identification feature.
How to Attract or Deter Phoebes
If you want to encourage eastern phoebes to nest in your yard, provide a sheltered ledge or a nesting shelf. A simple platform with a roof, placed under an eave, can work. Keep the area open so the birds can fly in and out. Avoid using pesticides, as phoebes rely on insects. If you need to deter them, block access to ledges with netting or a board at an angle, but do so before the nesting season begins. Once eggs are laid, you must wait until the young fledge.
Frequently Asked Questions
How long does it take for eastern phoebe eggs to hatch? Incubation lasts about 12–16 days, with the female doing all the sitting.
Do eastern phoebes return to the same nest every year? They often return to the same territory and may reuse a nest for a second brood in the same season, but they typically build a fresh nest each year.
Are eastern phoebes protected? Yes, they are protected under the Migratory Bird Treaty Act, so it is illegal to disturb an active nest.
What do eastern phoebe chicks eat? Both parents feed the nestlings a diet of insects, including flies, beetles, and caterpillars.
Should I remove an old phoebe nest? It is safe to remove an old nest after the breeding season (late summer to early fall), but wait until you are sure it is inactive.
Why is a phoebe building a nest on my porch light? Porch lights provide a flat, sheltered surface that mimics a cliff ledge, and the light may attract insects, making it a convenient feeding spot.
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