
Belding’s places its nest in dense marsh vegetation, on or near the ground, concealed from above. Pickleweed, shore grass, and saltwort are its preferred nest plants, and nesting success is higher where the plants are denser and taller. Belding’s Sparrow was one of the species whose eggs were most avidly sought by early collectors.
See it here: https://flic.kr/p/2kmfdEh