Our girls are almost 19 weeks old, and fortunately we have not had a loss to predators. I have had a live trap set for a few weeks to see if there is anything lurking about. Last night we made contact with one of the lurkers. He might look cute and cuddly, but he got nasty when the camera got close. Not real happy with me at this point. Regrettably, I needed to make sure this weasel was not a future threat to the flock. You can see how slim they are and why they can so easily fit through even the smallest of openings.