Dealing with multiple chicken predators

Well...it finally happened. I must have jinxed myself by saying "We don't really have a problem with predators" too many times. Somebody slap me! *sigh* A few weeks ago a grumpy guinea went missing. (she was grumpy with me for stealing her keets) 

It happened the day after I took away the babies she had helped to brood. They are NOT very good mamas at all, and the situation was quickly going south....but I digress. 

When she went missing I assumed she had taken over the only nest I couldn't find. I watched every day and count the guineas so when she came back to eat I could follow her back to her nest. I never saw her, but they do look an awful lot alike and I thought that I was just missing her. So I faithfully followed those guineas around day after day but they never went to visit her. I was sure she'd come back with babies in tow a few weeks later.

blue hen that was attacked by a hawk

2 days ago I went outside to see what the guineas were screaming about (again) and found a puff of feathers in the yard. Blue Marans feathers. Ut-oh. I looked and looked, but nothing. Finally I took the dogs into the woods and wouldn't you know, they found feathers!