Missing turkey hen

Our turkey count here on the farm is one tom and four hens. They all stick together like glue and it is very rare that you see one out of eyesite from the others.

Today I noticed that there are only three hens about. I looked around to see if I could locate her in the barn or the cow pasture but with no luck. So, I figure one of two things happened to her:

1) She got snatched by a fox or coyote during the night.
or
2) She is sitting on a nest of eggs hidden somewhere on the farm.

Since there are no signs of anything tramatic happening overnight I am really hoping for the latter. I guess I will only find out after another 28 days when any eggs would have hatched out. Maybe she was upset with me stealing her egg everyday. I would love to see her appear with a string of poults walking behind her.