A skylark is a small brown bird that sings while flying high above the ground. a small bird that sings while flying high in the sky = lark. Species (Alauda arvensis) of Old World lark particularly noted for its rich, sustained song and for singing in the air. It is about 7 in. (18 cm) long, with brown upper parts streaked with black and buffish white underparts. It breeds across Europe and has been introduced into Australia, New Zealand, Hawaii, and British Columbia
play boisterously; "The children frolicked in the garden"; "the gamboling lambs in the meadows"; "The toddlers romped in the playroom"
A lark that mounts and sings as it files, especially the common species (Alauda arvensis) found in Europe and in some parts of Asia, and celebrated for its melodious song; called also sky laverock