



RICHARD
Where Animals go in Winter
Most of us know that some birds fly south
for the winter, and some animals hibernate through the cold winter months, but
where do all the rest of the animals we usually see around Wisconsin go when the
snow flies? Well, there are many things animals can do in the winter.
For instance, there is a difference between true hibernators and animals that
are called sleepers. True hibernators put on extra weight in the summer and fall
and sleep so deeply in the winter that theyre almost impossible to wake
up; they slow their breathing and heart rate to almost none. Small hibernators
like gophers and woodchucks burrow themselves into the ground. Amphibian and reptile
hibernators like frogs and turtles bury themselves too, but in the mud of their
lake, creek, or river below the frostline; they breathe by drawing oxygen from
the air in the mud. The little brown bat happily sleeps away winter hanging upside-down
deep in a cave. Some people think bears, like Wisconsins black bear, are
hibernators, but theyre not! Black bears and skunks also store up fat and
sleep very deeply, but they might get up and move around if the weather gets warm
enough in winter.
Other types of animals stay active in the winter.
Its fun to look for tracks in the snow from animals like porcupines, deer
snowshoe hares, and if you can see them voles and mice. These animals
keep eating and moving around their habitat throughout the cold winter months.
Fish are winter active animals, too. They move down to the warmer, deeper waters
of their lakes and ponds. This is why you can go ice fishing in January!
Some insects lay their eggs just before it gets too cold and then die of old age.
Adult crickets lay their eggs deep in the soil, and in the spring, more chirps
fill the air as baby crickets emerge from the ground. Wasps are a little different.
Worker wasps help prepare the queen wasp all summer. When the weather gets cold,
the workers die, but the queen stays alive in a state called diapause. Their bodies
shut down almost like theyre dead, but theyre not!
Lots of
winged creatures fly south for the winter. Birds like the Canada goose migrate
from Canada and the northern U.S. states like Wisconsin to more southern states
like western Kentucky, Tennessee and southern Illinois. Butterflies fly south,
too. Many species go to Mexico, but the same butterflies dont return in
the spring. Midwestern monarchs continue south all the way to the Sierra Madres
of middle Mexico, where they spend the winter among fir forests at high altitudes.
Winter monarch butterflies are kind of sluggish. On warm days they head out to
look for nectar, but they don't reproduce. In spring they head north, breed along
the way, and then die.
There are lots of animals that make their home
in Wisconsin throughout the year. Can you think of more Wisconsin animals? Go
try to find out where they go during the winter!
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