now thats my field! (Aikido noob
nature is the best teacher of all.. endless examples to compare, situations to analyze and lessons to learn.
a well written article like this one can make an excellent point and bring deeper understanding, than "dry" description.
the main point, as the author pointed out, is to remember that all analogies lie- you have to understand the spirit of the story instead of stumble on details.
as a bird specialist i can say that many of their qualities are relevant to us and can be put to use in Aikido (atleats that my nooby observation
just my 2 cents