It is interesting to see that Mary-Ellen takes the remains of the meal out of the nest.
This is not the right place to post this, but I have been watching Pa and Vievie's family of four in the Netherlands, and the meal remains were rarely removed. A number of times, they all settled in on top of the leftovers after the chicks were fed! I guess this is just the characteristics of individual birds?
TPC: How soon after hatching must/should the chicks be fed?