Could be something stuck in it, IBR, irritated from the forage, etc.
Both nostrils I would lean toward IBR
Dun, you stated "both" would lead you to believe IBR, would you lean towards irritated etc, if it was only one? The reason I ask is I have a 4 yr old that has had a slightly bloody nose, bright red as in this case, for about a week and a half. I first thought fly bites, stuck it, etc. But now I'm wondering. She does not show any other signs, eats well, eyes clear, alert, good condition, lots of energy.
I'll call the vet in the morning but like to check in here, and add the result of the vet in case someone else had the same issue later.