Kind of, they will try to lure you away during the day if you get too close to the nest, but at night they go to roost. Your best bet is to find her (if she goes to setting) and making some kind of small pen or tractor to put over her at night, that is when she is most vulnerable. If she does hatch any keets, you either need to take them away or pen her and that babies up until they are a few weeks old. Guineas are good mothers, but they are stupid, they like to take newly-hatched keets through the tall, wet grasses, which of course causes the babies to get chilled and die. I had a hen hatch 8 or 9 keets last year. They did good until they were about 4 weeks old, then they started disappearing one by one. I was able to catch the last one and take it away. I had it in the brooder with some other keets for 2 months, and it never got any bigger. Apparently it was stunted early on, and it eventually died. If any of mine go broody this year (as I'm sure they will, since I can't find their nests!), I will do my best to pen them up with the mama, or take them away from her.