Feather Findings

According to a recent study reported in the Chicago Tribune, the size of birds’ feathers and the complexity of the molting process can indicate a bird’s flight capabilities. The larger a bird is, old feathers may wear out before new ones can grow in, which can impede the bird’s ability to fly. This may indicate an upper limit on the size of flying birds.

Through this study of more than 40 bird species, scientists discovered that the bird’s size affects how its feathers molt. Smaller birds that weigh less can lose several flight feathers without harm, while larger birds may take much longer to replace their feathers. Some species, such as ducks and geese that do not depend on flight for protection, can even replace all their feathers at once.

This is just one example of what birds can teach us. What have you learned from birds? Share your stories in the comments!

Swan Feather
Photo © Jim Champion