What if people touch a bluebird egg?

Touching a bluebird egg can lead to significant issues for the egg and the developing embryo. While many birds have a limited sense of smell and may not abandon their eggs due to human contact, the stress of handling can still disrupt the incubation process. Additionally, oils or contaminants from human hands can harm the egg's protective coating. It's best to observe wildlife from a distance and avoid disturbing nesting sites.