To end this controversy once and for all I am offering my new ornamental pond for scientific study. It has just recently filled. There are no fish in it. Not much chance of it freezing over. Plenty of wading birds visiting my other ponds a good distance away. If someone wants to set up say a duck blind on the bank, I would be willing to offer a cup of coffee in the morning and a beer in the evening. The hard part will be to hold the wife back from landscapeing and gold fish stocking. ;\)