Scientific name: Sayornis phoebe
Once dependent on rock outcrops and similar natural sites for nesting, Eastern Phoebes have adapted to using human structures such as building and bridges upon which to nest. Returning to breeding areas very early in the spring, Eastern Phoebes seem to migrate alone, and often return to nest sites used the previous year.
Though the eggs are apparently hardy against cold temperatures, female Eastern Phoebes sleep on the nest each night even before a clutch is complete and before daytime incubation begins. Most young hatch on the same day, at least for first broods each season.