My bonded 8 month old mallards took off in flight the other day and only the female came back. We've looked everywhere for him. . We have lots of trees and I think it maybe it messes them up. We've had wild ducks navigate well enough though.. I saw her come down so I know something happened during the flight. There is a large lake with lots of ducks about a mile or two down the road. What's the likelihood that he would leave his bonded hen? It's migration time as well, but we live in southern Ca. and ducks live here year round. Also, does anyone know how good their navigation is? In other words, would he know how to get home? They both flew into the neighbor's yard one time and just sat there for hours until we got them. This time, though, it's been a few days. I hope he's ok but I'm not too optimistic. At least the hen has a couple other ducks for company during this tough time. I've put up signs and the neighbors are on the lookout but we border a preserve that has miles of trees and creek. He could be anywhere.