Switch to 20 - 25 pound bags for you feathered friends. I go through 3 - 50 pound bags a month for my 50 chickens and 10 ducks and that is with them free ranging on 1 acre of pasture as well. I get frustrated with the 40 pound bags especially when the feed companies reduce the size without reducing the prices.Even in winter a 50 pound bag of feed lasts me 4 months, but I give it all to my neighbors after 30 days for their pig. Now that spring is here/summer for you yankees they aren't even touching their feed. I don't know why I even bother buying feed.