skirtings

Adult female: Like male but black veiled by deep reddish brown (clove brown) skirtings of feathers.

Adults in winter: Upperparts tinged with brown, the rufous feathers, especially on belly, with white skirtings.

Small angle fillets or mouldings are often used as skirtings.

You do the doors and windows, and let 'im do the cupboards and skirtings.'