Touche'. That's why Cecil's explanation makes sense. I have seen no evidence anywhere, yet, that a bird has been the root stocking machine that begat the population of fish in a pond. While the "fish egg, bird leg" theory seems plausible to us, the evidence I have seen also suggests other, more practical, ways fish make it into a pond. I overwhelming believe that Nature stocks virgin ponds by fish swimming during flood events, while we are inside with a good book. All it takes is less than an hour for a fish to swim upstream as far as half a mile. That's a long way.
Hey George, I'll be calling you in a couple of weeks. I've decided to write a story about flyfishing our private ponds and will need your input. Interested?
Teach a man to grow fish... He can teach to catch fish...