In a study recently released by ornithologists, Ozone Warblers are observed nesting in various environments. It is revealed that Ozone Warblers often mistake other objects for trees - poles, fences, a cow and even a beach umbrella! This has led the scientists to suspect the high number of broken eggs that have been found have to do with flawed nesting behavior that may itself be due to a genetic bottleneck like the Toba Eruption.