We are working to raise awareness about a silent killer within the bird conservation community, open vertical pipes. They can be found almost everywhere – on homes, office buildings, construction sites, agricultural fields, mining operations, even on protected public lands. They can take the form of fence posts, sign posts, irrigation systems, survey markers, vents on buildings and even vault toilet ventilation ducts. Any open vertical pipe between one and 10 inches in diameter with smooth walls (such as PVC or metal) is basically a death trap where birds and other wildlife can become ensnared and perish.