Comment on Ly Wen's "Cuckoo as ungrateful children"

After reading Ly Wen's post about Cuckoo, I have a better understanding about the use of animal imagery in the play "King Lear". I never have any knowledge about birds' living and this makes me feel difficult when I encounter the bird imageries used in the play. I appreciate Ly Wen's effort in surfing on the net to find out more information about cuckoo and this should be a good example for me to put more effort on my study. After reading her post, I understand why the Fool calls Lear's daughters Goneril and Regan as "cuckoo" in I. iv. l 214-215. Goneril and Regan's ungratefulness to their father is exactly like how cuckoo dominates the nest of its foster parent and displaces the other nest mates. I found that it is very meaningful and interesting that human's behaviours can be described through animal imageries. Perhaps because human is also categorised as animals in terms of biology, human do have some similar features like other animals. I think that Shakespeare has successfully using animal imageries in his play to portray a clear picture on human behaviours.