Medeltäckfjädrarna
Medeltäckfjädrarna are a type of contour feather found on birds. They are located on the upper surface of the wing, specifically on the posterior edge of the wing. These feathers are typically shorter than the primary and secondary flight feathers and are positioned between them. The primary function of medeltäckfjädrarna is to cover and protect the bases of the secondary flight feathers, creating a smooth and aerodynamic surface for flight. They also contribute to the overall wing shape and can play a role in insulation and display. The coloration and pattern of medeltäckfjädrarna can vary significantly between different bird species, often matching or complementing the plumage of the rest of the bird's body or wing. This variation can be important for species recognition and camouflage. In some species, they may also be involved in courtship displays. The term "medeltäckfjädrar" is Swedish and translates to "middle coverts" or "median coverts," referring to their position relative to other feather tracts.