What are these white round seeds?

[mopalia]

Split, they have the color of a popcorn seed

Soybeans

 

[Wolf River]

Chickens won't eat them. I can see why, they are too big to gulp down

I see whole kernel corn and yes those round little balls are soybeans. Go on Ebay and buy a small roller mill. Im a retired dairy farmer so l kinda have seed knowledge. I run all my scratch grains thru a roller mill.

 

[chooki]

What is the most prevalent field pea for livestock in your area?

This is the feed I buy for my chickens:

It's very similar to yours, except my free range birds don't eat the pellets, so I usually get the version with all grains instead.

When I answered 'dun pea' the first time, it's because that's the ones in my case, but then I realised that dun pea is probably an Australian thing.

If the supplier has not specifically remarked it's a particular kind of pea (because it's pricey but highly nutritious), I would assume it's the most available field pea for livestock in your area for that period being.

BTW, My hens don't like dun peas too.

 

[Altairsky]

I also feed my flock a natural homemade diet based on grains and legumes. To boost protein I add some race pigeon mix, and it has these whitish round peas and those ginormous black faba beans. My chickens have zero issues swallowing them.

Raw soy is toxic so soy seeds are never added to bird seed mixes. Soy must be processed and roasted to be edible.