This is the PDF crochet pattern from Psyduck Pokémon.

I designed him myself and crocheted him with 100% acryl yarn (DK / 8 ply) and a 3.5 mm hook (E) and he is stuffed with fiberfil (pillow stuffing).

The colors I used are:
Citron, for the body, head, tail and arms
Lemon, for the beak and feet
White, for the eyes
Black, for the nose holes and hears

Of course you can choose for whatever color or yarn type you would like. Just make sure you use a hook that fits the yarn (preferably a bit smaller than the ball band suggests).

Psyduck is approximately 13 cm / 5 inches

I almost only used single crochet stitches and made it by the amigurumi technique. So if you know how to decrease and increase with single crochet stitches, you should be able to make Psyduck by my pattern.
Only for his fingers and toes, I also used hdc, dc and trdc.

The pattern is written in English with U.S. terminology.

Off course there are also pictures included to make things more clear.