The birds have three physical characteristics such as swimming, walking, and perching.
Birds :
All plants and animals can survive in their environment, this ability of organism is called adaptation.
Adaptation has produced more than a million different species of animals on earth. Flight is the most important adaptation. Animals can most easily fly into the environment. Birds' legs and feet have adapted to suit many different lifestyles.
Adaptation is caused by evolution which is a gradual change. Food is required to the birds to flight. Communication is also one of the key for survival.
Feather, bills, wings and egg laying capacity are some of the characteristics for animals. Hollow bones help birds to fly easily. Probing, perching, climbing, seizing prey are some of the characteristics of bird.
Therefore, The birds have three physical characteristics such as swimming, walking, and perching.
To learn more about birds, refer to the link:
https://brainly.com/question/25120645
#SPJ1
