The Philadelphia Vireo was first discovered in
Philadelphia in the 1940s, but is only a migrant through that area. The
vast majority summer in southern Canada and are only migrants through the
eastern half of the United States. They are most often found high in the
treetops and rarely sing during migration, so are perhaps widely overlooked in
spring in the U.S.
deciduous or mixed woodlands during the summer breeding season, especially near
woodland edges or in young second-growth forest. Uses open woodlands in
the tropics during the winter.
Diet: Primarily feeds on insects in all seasons. Will
also eat spiders, snails, fruits, and berries.
Behavior: Philadelphia Vireos are often found high
in the forest canopy, but they will also forage lower in the canopy or in
shrubby undergrowth. They will sometimes flycatch, observing from a
perch on a branch and flying out to catch passing insects.
Breeding: Non-breeder in South Dakota
Song: Short whistled phrases with deliberate pauses in between.
Migration: Primarily summers in southern Canada,
locally in New England and the upper Great Lakes area. Winters in the
Conservation Status: Numbers appear to be stable.
Cornell University's "All About Birds - Philadelphia Vireo"
Photo Information: May 19th, 2008 - Minnehaha
County, South Dakota - Terry Sohl
Additional Photos: Click on the image chips or
text links below for additional, higher-resolution Philadelphia Vireo photos.