Registration deadline for October Madness Birding Challenge.  This Big Day tournament is similar to an NCAA basketball tournament for birders! It will beheld on Thursdays through Sundays on successive weekends in October, with the length and format dependent on the number of participants. Each week participants will be matched against another birder and will attempt to find the most bird species on one day, anywhere in Iowa. Participants may bird on any or all days between Thursday and Sunday, and submit their highest one-day total. Consolation brackets will allow birders to compete for more than one week. Advanced registration is required – contact Jerry Denning by September 27 at geralddenning50@gmail.com.