How Do Pigeon Adapt To Their Environment?

How Do Pigeon Adapt To Their Environment? (1)The body is boat shaped and streamlined to provide least resistant to air current. (2)The eyes have well developed nictating membrane for protection from air,dust etc. (3)The forelimbs are modified into wings. (4)The is covered with feathers to provide insulation. How do pigeons survive? To keep warm, they