Extract from Wikipedia- ..........Breeding commences mainly in April and May, with the female building a lined cup nest in a concealed location on or near the ground. The three to five eggs are patterned with a mesh of fine dark lines, giving rise to the old name for the bird of "scribble lark" or "writing lark".........
Is that your photo @Bedlingtonian? You could start an album of bird species & sightings in Gallagher Park in the https://www.bedlington.co.uk/gallery/category/5-and-the-rest-gallery/