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Nesting Behavior Chart

Species

Bewick’s Wren

Breeding
Period
(Dates vary by
region)
March-July

Incubation
Nesting Materials

Eggs

Broods

Fledge

14 days

1-2

14-16 days

Period
Twigs, grass, lined

5-7 white with

with feathers

brown flecks

Carolina Wren

March-July

Twigs, dry grass

4-5 white to
creamy

14 days

2-3

12-14 days

House Wren

April-July

Twigs, grass

6-8 white marked
with brown

14 days

2

12-18 days

Winter Wren

March-June

Twigs, moss,
lined with feathers

5-7 white
with brown

14-16 days

1-2

15-17 days

Eastern Bluebird

March-July

Grasses, pine needles,
weeds, lining of fine grass

4-5 clear blue

12-15 days

2-3

15-18 days

Mountain Bluebird

April-July