Kirkendall-Spring / Old lopsided barn with grain silos in the background, Douglas County, Washington, USA

Gary K. Smith / UK Livestock farming - farm buildings with pig feed silos being refilled by lorry, Norfolk, UK, May

Todd Mintz / Snowy owl (Bubo scandiaca) female resting on road sign with silos in background, Canadian prairie, Saskatchewan, Canada, March

Gary K. Smith / Livestock food silos in rural landscape, Norfolk, UK, April