Join Date: Oct 2007
Location: Alberta, Canada
• Horses: 0
Drool and foam is most always a good thing! It means the horse is relaxing and working its jaw; not all horses foam when their jaw is relaxed, but a good many do, so it's a good thing!
The green would just be the grass mixing in.
I've head of a few dressage riders giving their horses peppermint candies (the white ones) to make them foam white... I assume it would smell good too ;)
ETA - as SpasticDove mentioned, some horses foam regardless of what their jaw is doing...
The lovely images above provided by CVLC Photography cvlphotography.com