Am watching "Nature" on PBS - a show called "What Males Will Do" on TPT-PBS. It is even in HD!. Fascinating info on sex structures in ducks, manakin sound structure analysis, and different dances and calls. It included non-bird info too that was equally fascinating. I don't see that it is coming up again and I have probably missed it's earlier showing. If you get a chance, enjoy.
Thomas Maiello Angel Environmental Management, Inc. Maple Grove, MN
