So I haven't posted on here in a couple months but those who remember me hello again! And those who don't, I have two drakes as pets. They're about 5 months old now and as far as I've observed, thriving. However, within the last two months, their stools have become mostly...loose and wet looking. I haven't fed them anything different besides duck/chicken mash and occasional blueberries or razberries and the very rare chopped up hard boiled egg. Now this hasn't made me think anything is wrong with them, but today I noticed my Cayuga drake, Biggie, limping kind of obviously. He is being friendly, coming up to me, swimming in the pool with my Welshie drake, Winston. Nothing is different, except that limp. It's kind of concerning me. I told my mom and she says if he keeps it up we're going to try and take him to a vet. Anyone have any thoughts on what it is?