Range. - North America, east of the Rockies and north to Nova Scotia.
These very common, grayish colored birds are very often known as "Bridge Birds" because of the frequency with which they construct their nests under bridges and arches; they also build in crevices in ledges or among the hanging roots near the tops of embankments, and on the rafters or beams of old buildings. The nests are made of mud, moss and grass, lined with feathers. The four or five eggs measure .75 x .55. Occasionally, eggs will be found that have a few minute spots of reddish brown. Freak situations in which to locate their nests are often chosen by these birds, such as the brake beam of a freight car, in the crevices of old wells, hen houses, etc. The birds are one of the most useful that we have; being very active and continually on the alert for insects and beetles that constitute their whole bill of fare.
G. E. Moulthrope. PHOEBE ON NEST PERCHING BIRDS.