easy

Known for their natural tuxedos and marching.
Common Wrong Answers
“Ducks”
Ducks do have a similar appearance with their feathers, but they do not have the distinctive black and white coloration associated with tuxedos, nor do they typically march in a formal manner like penguins.
“Geese”
Geese can also be seen in groups and have a formal look to them, but they are not known for wearing tuxedos, and their behavior does not include marching like penguins do.
“Ostriches”
Ostriches are large birds that can run quickly, but they do not wear tuxedos and their movement is not characterized by marching; instead, they have a more casual gait.