Do birds get tired of flying, mid-flight?

YES. Flying requires an extensive amount of energy. Birds however have adapted themselves for the flight. >They have furcula (wish bone) which provides them firmness for flight. >They additionally have a keel (carina) for anchoring the flight muscles. read more

Yes, just like people and animals get tired of running. - They may become tired during flight but they rest on air currents (or flocks of birds create air flows so that members in the group can rest while flying ). read more

Depends on the bird parteicularly its weight and if it uses thermals to glide. Obviously many birds migrate thousands of miles in a single flight. So obviously they dont feel so tired they must stop. read more

Once birds get up in the air, they use two main flying techniques to stay up there. Soaring: When birds soar, they take advantage air currents to help hold them up. Three kinds of air currents are especially helpful to soaring birds. read more