I was poking though google and found this. I'm downloading it now but it looks like even though it's for pet birds and their breeding it looks pretty customizable and may work well for flock owners. It will be done downloading soon and I'll seen how well it works. It's free although they do want your email to send you the link. It is a decent sized file if you have dial up but It should be able to download regardless. http://www.birdsevolutionpro.com/ I did install it and it looks complicated but I figured everyone deserves to know it exists and it didn't cost a penny and it's fully operational but it seems to be more directed toward pet birds than chickens.