My DH decided to try out his new air soft gun in the yard...grrr. I tried to pick up as many as I could find, but a few days later I watched a chick eat one. Nothing I could do. Distraught I scoured the web without finding much else besides this post. I was elated to see the chick passed the yellow bb on the walk path where I could see it. Whew! What a relief. I was very concerned because the bb's that come with the gun are not biodegradable. DH doesn't do that anymore ;o)