Most penguins live where there aren't any trees. On top of that penguins can't fly, and aren't that great at climbing either, so getting into a tree - if there was one - would be real difficult for them..
Penguins in Antarctic don't build nests like other birds. They do, however, mark their nesting territories with rocks.
i believe they dont have nest they just walk around with the eggs between there legs
Penguins that make nests -- not all penguins make them -- form them from stones that the males can pick up and carry in their bills.
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Penguins do not build dens. Instead, they create nests using stones, pebbles, and other materials to protect their eggs and chicks from the cold and predators. The male and female penguins take turns incubating the eggs and caring for the chicks in these nests.
Adellie penguins use pebbles to build nests.
They lay them in nests and sit on them.
penguins are a type of flightless birds wich builds their nests on the ice.
penguins don't build nests
They build their nests with stone because it is strong and is the most common thing they can find,