my broody runner duck decided to make her nest outside in the back under the brambles so i move her eggs and her into the coop then she moved them back outside. my daughter tells me there is ants on rubys eggs so i candled and one was rotten the rest look great but no internal pips yet and today sould be the 28th day so i was told by a few people to make a nest in a large dog crate so i did put her good eggs in and then her. she covered them with shavings but wont sit on them she just stands over them! when should i start to worry and put them in the incubator? what should i do im worried i messed up but i was worried the peeping outside unprotected would attract predators. advice please!!!!