Reading this reminds me of the horrible time that my poor rouens were ill and fitting but i had no idea why or what was going on. i thought for sure they were dying as i was holding them whilst the spazzed out fitting. it was horrifing and the next morning it took me hours to bring myself to check up on them. luckily my ducks respond to the sound of me awakening and the next morning it was like nothing ever happened. they were all perky and feeding and drinking ect. it was really wierd and im soo sorry for your loss. i sont know what i would have done if even one of my babies were to pass away. i have rouens which a essentially giant french mallards. Hope you find a freind for him soon but in the meantime letting him socialize with the dogs is a good thing. i strongly belive that a ducks greatest hunger is for attention and companionship and that is probablly the biggest thing ive learnt about ducks since i hatched mine almost 2 years ago.