I have about a year old Pekin drake who has developed a watery discharge from his eyes, one which is closed unless we open it. It seems to be "stuck" closed. The other eye is starting to close. He has been lethargic as well. Not sure what to do for him other than separate him, which we've done and use warm water to rinse away the discharge. He ate a little last night but I'm concerned I'm going to lose him. Thanks for any help/advice!