What is "Pigeon Combo Grit"?

[crosbygroup]

What is "Pigeon Combo Grit"?

I understand the grit part

but what is in the "combo" part? Is it just oyster shell or do they add other things?

 

[Mary Of Exeter]

Yep, probably just a lot of different stones and supplements added in. Like oystershell, granite, charcoal, redstone, etc.

 

[crosbygroup]

What is redstone?

 

[Mary Of Exeter]

Ya know, I'm not even sure what it is

It's not in my grit, so I wouldn't know. But it is in a few different mixes, so it must be beneficial in some way.
http://www.siegelpigeons.com/catalog-stones.html

 

[Mary Of Exeter]

http://www.everythingforpets.com/versele_laga_grit_redstone_only.pet/use.id.5.item_id.571.dept.109/
Looks like the red rocks I sometimes see lining little pathways and such.