Aigrette were very common in this period, and were used for adorning a headdress. They were so common that regulations had to be set so the fashion wouldn't result in the extinction of certain birds. Some countries even banned the importation of feathers by the second decade of the century.
Почему в СССР так и не переименовали Москву? / Назад в СССР / Back in USSR
Anne de Souvres, Marquise de Louvois (1646-1715), 1693 by French school
Artwork by French School, 17th Century, Portrait de jeune fille,
French Lady, 1695. Note the ribbon bows she is wearing amongst the lace rows of the Fontange. Jewels in her hair and hairpins. The stomacher pièce d'estomac is embroidered, engageants at the chemise sleeves with ribbons at the height of the elbow. French
Portrait of the dancer Eva Marie Veigel, later Mrs. David Garrick by Edward Haytley, mid 18th century