Wood Thrush
Hylocichla mustelina
The song of the Wood Thrush is extraordinarily clear and rich, echoing through the tall trees at dawn and dusk. The song has three distinct movements that follow each other rapidly: the first section is rather staccato, the second flute-like and crystalline, while the third is a shrill, bell-like trill. Without this telltale song, the Wood Thrush, with its discreet plumage and behaviour, might easily go unnoticed.
Slightly smaller than the American Robin, the Wood Thrush is the largest of
our thrushes. During the breeding season, this bird is usually seen on the
ground and in the lower layers of vegetation in maple stands and other mature
forests. The Wood Thrush is affected by the fragmentation of woodlands.
In May, the males come back first to the territories they occupied the
previous year, generally in damp undergrowth beneath tall deciduous trees, where
there is dense shrub cover and thick leaf litter. They then defend their
territory by singing loud and long. The females arrive a few days later.
The Wood Thrush feeds mainly on insects, which it finds in the leaf litter or
near the ground. In the fall, it adds berries to its menu.
The female chooses the location of the nest by herself and generally builds
it on a low branch or in the fork of a tree concealed in dense forest, about 1.5
to 4.5 m from the ground. She builds the cup-shaped nest out of bits of grass,
plants and mud and lines the inside with rootlets. She then lays three or four
greenish-blue eggs, which she incubates alone for 12 to 14 days. The nest is
often parasitized by the Brown-headed Cowbird, and the thrush generally
tolerates the intruder, to the detriment of her own brood. After the young
hatch, the female continues to incubate them alone, but the male participates in
feeding the young until the age of 32 days. Wood Thrushes usually produce only
one brood a year.