Stopping at Four in a Feathered Nest

It appears that Mary ann and Sutcliffe are stopping at four: we see no additional egg since our absence over the Thanksgiving holiday. The fourth egg seems to be a bit neglected. The first three have been "herded" into a central spot, and Mary ann sits on them almost the entire day. The fourth remains on the periphery, which is concerning. Yesterday I HAD to clean the cage (there have been two requests for poop pictures, but that was vetoed by J for this blog). In any case, during cleaning, Mary ann was very agitated and came out of the box. She has already lost weight. I hope Sutcliffe can keep up with feeding her and when they hatch, the young! It is likely only one, or even one, will surivive. But we will see!