Bird GuideWood WarblersNorthern Parula

At a Glance

This small warbler is often hard to see as it forages in dense foliage of the treetops. However, it is easy to hear; the male seems to repeat his buzzy trickle-up song constantly from early spring through mid-summer at least. Northern Parulas hide their nests inside hanging Spanish moss in the South, or in the similar Usnea lichens in the North, where they are impossible to spot except by the actions of the parent birds.
Category
Perching Birds, Wood Warblers
Conservation
Low Concern
Habitat
Forests and Woodlands, Freshwater Wetlands, Lakes, Ponds, and Rivers, Shrublands, Savannas, and Thickets
Region
California, Eastern Canada, Florida, Great Lakes, Mid Atlantic, New England, Plains, Rocky Mountains, Southeast, Southwest, Texas, Western Canada
Behavior
Direct Flight, Erratic, Flitter, Rapid Wingbeats
Population
18.000.000

Range & Identification

Migration & Range Maps

Southern breeders return very early, often by early March, and may be actively nesting while other Parulas are passing through on their way farther north. Strays may appear in West at any time of spring or fall.

Description

4 1/2" (11 cm). Blue-gray above with white wing-bars, greenish patch on center of back. Limited yellow on throat and breast, white belly. Note the pale eye crescents. Adult male has black and rusty chest bands.
Size
About the size of a Robin, About the size of a Sparrow
Color
Black, Blue, Gray, Orange, White, Yellow
Wing Shape
Rounded
Tail Shape
Notched, Square-tipped

Songs and Calls

1 or more rising buzzy notes dropping abruptly at the end, bzzzzz-zip or bz-bz-bz-zip.
Call Pattern
Falling, Flat
Call Type
Buzz, Chirp/Chip, Hi, Trill

Habitat

Breeds mainly in humid woods where either Usnea or Spanish Moss hangs from the trees (but also in some woods where neither is found.) Nests mainly in humid coniferous and deciduous forests, especially those with abundant tree lichens, in swamps or along edges of ponds, lakes, or slow-moving streams. In migration and winter, frequents almost any kind of trees.

Behavior

Eggs

4-5, occasionally 3-7. Whitish, variably marked with brown. Incubated by both parents, but mostly by female, 12-14 days. Young: Both parents feed young, but male may do more. Age at which young leave the nest is not well known.

Young

Both parents feed young, but male may do more. Age at which young leave the nest is not well known.

Feeding Behavior

Forages rather sedately. Searches among leaves, and hovers to take insects from foliage, sometimes hanging upside down on twigs like a chickadee or on trunk like a nuthatch. Occasionally darts out after flying insects, or forages on ground.

Diet

Mostly insects. Feeds on small beetles, flies, moths, caterpillars, egg clusters, true bugs, ants, bees, wasps, and other insects, also spiders. Also eats some small berries. May feed nestlings many soft green larvae.

Nesting

Pairs often return to same nesting site year after year. Males sing during migration and throughout nesting season, even when feeding young. Nest: Placed usually in a hollow excavated in hanging tree lichens (Usnea) or Spanish moss, 4-50' above the ground. When no lichens or Spanish moss available, also constructed of dangling clumps of twigs or pine needles, or placed in rubbish left by floods in branches hanging over stream. Nest is small hanging pouch of lichen and twigs, unlined or lined sparsely with soft shreds of moss, grass, pine needles, and hair. Built solely by female, but male accompanies her on trips to the nest.

Climate Vulnerability

Conservation Status

Still widespread and common, numbers apparently stable.

Climate Map

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect the range of the Northern Parula. Learn even more in our Audubon’s Survival By Degrees project.

Climate Threats Facing the Northern Parula

Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.

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