a line of contrasting color along the coverts of a bird's wing.
Origin of wing bar
First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for wing bar
Historical Examples of wing bar
For the latter retains its uniform blackness, while the former gains red on the wing-bar, and saddle and hackle lacing (plate 4).Inheritance of Characteristics in Domestic Fowl
Charles Benedict Davenport