What is a major reason to avoid flying birds during the molt?

Flying birds during the molt is generally avoided for several key reasons.

One significant reason relates to the risk of injury to blood feathers. During the molting process, birds replace their feathers, and newly growing feathers have a blood supply that nourishes them. If a bird injures these blood feathers while flying, it can lead to significant bleeding and complications.

Additionally, hunting during this period can be challenging due to the difficulty in spotting quarry. Molting birds may not be as alert or agile, making it harder for them to locate and pursue prey.

Another important factor is the increased energy demands that molting imposes. Feather growth requires a considerable amount of energy; the bird may be less able to sustain the exertion of hunting and flying effectively during this time.

Taking all these points into consideration, it's clear that avoiding flying birds during the molt is advisable to protect their health, ensure hunting success, and manage their energy levels appropriately.