Pekin Ducks are VERY smart. They imprint on you or you do on them very quickly. Their hearing and vision is exceptional. When I'm out in my back yard in the evening, they can hear me (mostly because I'm out there with my Father who is quite deaf so I'm basically screaming) and they come looking for dinner. It is now branching out to anytime I come and go. I swear they know the sound of my car and my garage door opening! Gert's on the nest so maybe she needs to eat more often. She's always the ring leader..... I'm quacked!