All ages
and sexes show a conspicuous white eyering and a yellow throat contrasting
with a grey to green-grey head. The upperparts are olive while the underparts
and undertail coverts are largely yellow. The crown may have some chestnut
on it that is often hard to see.
Habitat
The Nashville
Warbler can be found in open mixed forests with shrubby undergrowth but
also in bogs on the peripheries of conifer forests.
Song
The eastern
and western subspecies vary in their song. The eastern subspecies (ruficapilla)
has a two-parted song, "seebit seebit seebit titititi." The second part
of the western subspecies' song (ridgwayi) is slower and richer
sounding.
Similar Species
immature Orange-crowned Warblers (split eyering), female Common Yellowthroats (no eyering).
Comments
Nesting occurs on the ground, usually under the cover of grasses, vegetation and bushes. Foraging appears to be slow and deliberate at the ends of branches.
Two subspecies exist for the Nashville Warbler whose breeding ranges do
not overlap. The western subspecies has a habit of bobbing its tail while
the eastern subspecies does not.
Distribution
The Nashville Warbler breeding range spans from southern British Columbia, a small pocket in south-eastern Alberta, central Saskatchewan, central and southern Manitoba, central Ontario, central and southern Québec and the Maritime provinces.