What age can I start feeding ducklings peas?

[NewDuckMama4]

They have done great with there peas since they were like a 1-2 weeks old and i never had to cut or smash ...and i did and do provide grit .....but honestly mine would eat a half bag at least between the 4 of them if i let them!!!! So im wondering what would be the max amount of peas or any veggie i guess that they can get at a time .....??!?!? They looove the shredded zucchini and acorn squash i have given them i shed it up with the really small grater but ive only been giving a little at a time cuz i domt want to over do it but they would GLaDLY eat more.....ive also been keeping a chart of everything they try and how much they like it!! Based this off of the "ULTIMATE DUCK TREAT LIST" i found on a different thread here.....thank you to everyone who has taken the time to read and respond to me!!! Ive done countless hours of research and reforum reading to ensure that im doing everything i can to provide my babies with

 

[Miss Lydia]

4 duckling maybe 1/4 cup each. Now that our youngest are 9 weeks old they just eat what everyone else eats so when I give lettuce or tomatoes I just put it down and everyone digs in. But mine have to rely on their feed more than even veggie treats. And of course they forage.