Ducks have done a Runner

Until quite recently we have had a mixed flock of 5 Indian Runner Ducks and about 15 Call ducks.
But it's silly season for ducks -  the females go broody and lay eggs all over the place and the males spend almost their entire time chasing around after the females the minute they leave their nests. It's totally chaotic.

Even more crazy is that three of the Indian Runner ducks trot around the fields whenever the dogs are not in evidence escorted by one of the male Call ducks. The male Indian Runner prefers to spend all his time by the home pond.... actually I think he is visually impaired - but that's another story!

 So, for most of the day, when the dogs are not in evidence, the three girls and their escort can be seen trotting hither and thither across the fields looking for tasty treats or just basking in the long grass.

Until a couple of days ago when I noticed there were just two trotting around...... and only 4 Runner Ducks waiting to be shut up at night.

Then Yesterday there were only three waiting to be shut up with the others......

So, the question is... where are the other two. Surely not brooding on a nest somewhere. After all, a Call duck would not mate with a Runner would he? And if he did and eggs that were laid actually hatched - what would be the result????   I don't think it is anything to do with Charlie Fox because he would have taken the lot, not just one at a time....
Have the ducks done a 'runner'?
Will they reappear as suddenly as they disappeared?
Watch this space....................................