Fruit tree guild orchard with ducks?

Hello!! This year I started the fruit orchard… I have planted apples, and will be planting pears, cherries, peaches when they arrive. Over time I will continue adding more fruit trees.

I have strawberries around one tree and have been creating guilds over time too.

I would like to have ducks in the orchard full-time. We have 5 ducks that are in a fully enclosed pen with house, but I’d like some that care for the orchard.

Will they eat all the lower lying guild plants? Anyone have a setup like this?

Thanks for any information!