Just pictures showing what the breed looks like, basically. I prefer high-quality pictures, but it's not necessary.
I can credit you if you want. I only have one Mallard and one Call, so I'd like more pictures for those breeds.
There's more information here...
@dan26552
You posted a picture of Dutch Hookbills earlier...is that your picture? Are they your ducks?
I'm wondering because I need a couple pictures of hookbills for this:
https://www.backyardchickens.com/t/1020924/pictures-for-duck-breed-guide/
It's a lovely picture. If it's your picture...