Appropriately
named, the Snow Bunting is a bird of the high Arctic and snowy winter
fields. Even on a warm day, the mostly white plumage of a bunting
flock evokes the image of a snowstorm.
At a Glance
Habitat
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Food
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Nesting
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Behavior
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Conservation
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Grassland
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Seeds
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Ground
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Measurements
Both Sexes
Length
5.9 in
15 cm
Wingspan
11.8 in
30 cm
Weight
1.11.6
oz
3146
g
Other Names
- Bruant des neiges (French)
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Cool Facts
- The male Snow Bunting returns to its high Arctic breeding
grounds in early April, when temperatures can still dip as low
as -30° C (-22° F) and snow still covers most of the ground.
The female does not return until four to six weeks later.
- Early arriving Snow Bunting males set up and defend territories
that include good nesting sites. They will still come together
in flocks to forage, and usually roost in loose groups of from
30 to 80 birds.
- The Snow Bunting places its nest deep in cracks or other
cavities in rocks. Although such nest sites are relatively secure
from predators, rocks are cold. The thick nest lining of fur and
feathers helps keep the eggs and nestlings warm, but the female
must remain on the nest for most of the incubation period. The
male feeds her while she is incubating so that she does not need
to leave the nest very often.
- Although breeding and nonbreeding males look quite different,
the Snow Bunting has only one molt each year and no true "Alternate
Plumage." After the molt in the late summer the male looks
brownish with a brown and black striped back. Underneath the colored
feather tips, the back feathers are pure black and the body feathers
all are white. The male wears off all of the feather tips by actively
rubbing them on snow, and he is immaculate white and jet black
by the time breeding begins.
- The oldest recorded Snow Bunting was a male, and at least
8 years, 9 months old when he was recpatured and rereleased during
banding operations in Alaska.
Habitat
Breeds on rocky tundra. Winters in open weedy and grassy fields
and along shores of lakes and oceans.
Food
Weed and grass seeds, insects.
Nesting
Nesting Facts
Clutch Size
27 eggs
Egg Description
Creamy white
with variable brown
spots and scrawls.
Condition at Hatching
Helpless, with long, gray-brown down.
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Nest Description
Open cup of moss and grass, lined with fine grasses, rootlets,
and fur and feathers. Placed well back in cavity in rocks, such
as cracks.
Nest Placement
Behavior
Walks on ground and pecks at food. May jump up to take seeds
from taller stems.
Conservation
There is little information on Snow Bunting population trends.
Partners in Flight estimates a global breeding population of 30
million with 50% spending at least part of the year in Canada, and
25% wintering in the U.S. The species rates a 10 out of 20 on the
Continental Concern Score. Snow Bunting is a U.S.-Canada Stewardship
species and is listed on the 2014 State of the Birds Report as a
Common Bird in Steep Decline.
You Might Also Like: Snowbird
Season. Story and photographs in Living Bird magazine.
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