Talk:William T. Hornaday awards (Boy Scouts and Varsity Scouts)
As of August, 2009, the Scouting.org page lists Fly Fishing as an elective. There are now 21 merit badges listed under Hornaday awards.
There is a fault in the requirements for the merit badges portion of the badge. Environmental Science can count for the smaller section of merit badges to earn, according to the official application at http://www.scouting.org/filestore/pdf/hornaday/badge.pdf