He's still around.
My Elvis at least. Living in the reflection pond at The Park.
I read somewhere that muscovy ducks live about 3-4 years, but it's been over 4 years since I first admired Elvis' fabulous jet black pompadour and the perfect, red, stitch- like adornment around it... and we became friends.
Over that time I've seen him hang with a changing group of guy ducks, sometimes one, sometimes three others. Once in awhile, he comes over to me and we have some time alone. I like that time.
It's never anything less than amazing to commune with an animal. I always feel in my element.