While the Windy Wings have a duck, the Summer Wings don´t have one ^^
I also have the Sweetheart Sister backcard, it has 4 little ducks on it ^^
Spoiler
https://img.webme.com/pic/t/tjenni/0g1shs5moc.jpg
Sunshine Pony has a butterfly catching duck
Spoiler
https://img.webme.com/pic/t/tjenni/0g1sunshine4moc.jpg
Tropical pony a relaxing duck
Spoiler
https://img.webme.com/pic/t/tjenni/0g1tropical2moc.jpg
The Bride has a pair of ducks
Spoiler
https://img.webme.com/pic/t/tjenni/0g1rest03mib.jpg
And a miniature picture of Precious Pocket backcard (on ebay is a Bubblefish backcard, where you see the duck much better)
Spoiler
https://img.webme.com/pic/t/tjenni/g1pocket1moc.jpg
Pretty Pony
Spoiler
https://img.webme.com/pic/t/tjenni/00pretty.jpg