Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a number of different colour morphs. Differences in plumage are used by ornithologists and birdwatchers in order to distinguish between species and collect other species specific information.^{[citation needed]}

Almost all species of birds moult at least annually, usually after the breeding season, known as the pre-basic moult. This resulting covering of feathers, which will last either until the next breeding season or until the next annual moult, is known as the basic plumage. Many species undertake another moult prior to the breeding season known as the pre-alternate moult, the resulting breeding plumage being known as the alternate plumage or nuptial plumage. The alternate plumage is often brighter than the basic plumage, for the purposes of sexual display, but may also be cryptic in order to hide incubating birds that might be vulnerable on the nest.

Ennio Morricone, Grand Officer OMRI, Italian pronunciation: [ˈɛnnjo morriˈkoːne], (born November 10, 1928) is an Italian composer and conductor, who has written music for more than 500 motion pictures and television series, in a career lasting over 50 years. His scores have been included in over 20 award-winning films as well as several symphonic and choral pieces. Morricone is most famous for his work in the Spaghetti Westerns directed by his friend Sergio Leone, including A Fistful of Dollars (1964), For a Few Dollars More (1965), The Good, the Bad and the Ugly (1966), and Once Upon a Time in the West (1968) but his career includes a wide range of composition genres making him one of the film world's most versatile artists. He is considered as one of the most influential film music composers of the 20th century.

Born in Rome, Italy, Morricone took up the trumpet as a child and attended the National Academy of Santa Cecilia to take lessons on the instrument at the age of nine. He formally entered a conservatory at the age of 12, enrolling in a four-year harmony programme. He received his trumpet diploma in 1946 and started working professionally, composing the music to "Il Mattino" ("The Morning"). Morricone soon gained popularity by writing his first background music for radio dramas and quickly moved into film.