Already my memory is a bit hazy on this one. We are apparently back to the hen mentioned early in the story, who at least in part represents the feminine principle, picking away through the ashheap of history, created and I guess destroyed by the masculine principle. I'm not sure I altogether trust Joyce's analysis of the masculine and feminine principles, but never mind, it's quite unlikely that I understand what he's really trying to say.
Here's a good line: "Bethicket me for a son of a beech if I have the poultriest notion what the farest he all means."
As relates to Finnegan, my sentiments exactly.
And here's another: "What bird has done yesterday man may do next year, be it fly, be it moult, be it hatch, be it agreement in the nest."
The agreement in the nest may be stretching it a bit, though...