Acrylics are used for this purpose because they easily scrape or peel from a surface. A quick scrape with a fingernail is effective and intuitive. The peregrine falcon nests in a scrape, normally on cliff edges. Many molluscs have a radula which is used to scrape microscopic particles off surfaces. To make the sound, the wasps scrape their mandibles across the nest walls. It nests in a ground scrape or hole and lays one to three eggs. This drag boat would scrape the silt away from the quay walls. Such uses are attested by characteristic microscopic alterations of edges used to scrape wood. If this happens, scrape them off and isolate the plant. The radula is used to scrape microscopic algae off the substratum. They may urinate into the scrape they've made, and sometimes defecate. The technique used to construct a scrape nest varies slightly depending on the species. The only approach is to scrape it off. The nest consists of a simple scrape in the ground, lined with grass and leaves. They aren't having to scrape the barrel yet.