Maybe they are stretching their legs, so to speak. I don't have ducks, but I do have guineas. Luckily we put up a fence so they usually don't go over it, but sometimes they get around it. They explore more and more each year.

Maybe your ducks have wanderlust. Or maybe they want to migrate?

I've had a khaki campbell, a mallard, and a mallard mix and they are all 3 together al the time! They haven't ever flown that I know of (maybe they don't know they can) but I've had them about a yr now and just about a month ago the mallard and the khaki campbell have started slipping under the fence and getting into the street and then they'll get scared and try to get back in, but they don't know how to get back in so I have to go get them. It's happened about 4 times, but it hasn't happened anymore in a while....

I'm afrAID OF cars hitting mine so I always go get them as soon as I see they're out, I hope your ducks stop wandering around the road. Good Luck with them :)

Why did the duck cross the road???
because it was there

Just a guess...I noticed that the grass started greening up close to the roads first.

Maybe they are trying to get the nice, green grass...

may be they r just tired of being in the same place all the time

My khakis run out to the road to feast on earthworms during the wet season. They stay out of the road when it's dry (about 3 1/2 days a year, here in Oregon).

One of my ducks was killed by a car yesterday so I'm going to work on a plan to keep them home and still let them freerange. Their eggs are an important part of our food around here.