January has been a snowy month for me, so it seems
fitting that the Species of the Month be equally snowy. A few weeks ago we
learned about the snowy owl, but now we’ll look at another white bird from the
cold, snowy north- the snow goose.
Scientific name: Anser
caerulescens
Kingdom: Animalia (animals)
Class: Aves
(birds)
Order: Anseriformes (ducks, geese, and swans)
Range: Summer range is eastern Arctic Canada and
Greenland; winter range is Gulf Coast and Midwest states. They don’t fly
nonstop, so there is migratory habitat in between.
Habitat: Tundra, marshes, tide flats, prairies,
farmland
Lifespan: 20 years, on average
Diet: Roots, grasses, sedges
Predators: Arctic foxes, jaegers, eagles
Conservation Status: No special conservation status
Other Information: The snow goose has two color
morphs, white and dark gray (known as blue goose). Blue goose was originally
considered a separate species. Snow geese are a popular game bird. Due to
rising populations, they are considered an agricultural pest in some areas. The
black mark on the bill is sometimes referred to as lipstick or the grin patch.
They mate for life. The female incubates the eggs while the male stands guard
over her. They sometimes nest near snowy owls, which may deter predators.
Nesting colonies can contain tens of thousands of birds. The snow goose is model for the National Wildlife Refuge System's logo.
National Wildlife Refuge System's logo |
This week's information comes from University of Michigan's Animal Diversity Web. Photos are from Missouri Department of Conservation, except the logo.
Snow goose |
Blue goose color morph |
Thousands of snow geese in flight |
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