2. Given a choice between a stream & a mud puddle during cold weather they always choose the mud puddle.
3. Choosing a clear puddle vs. a muddy puddle seems a matter of preference but given a choice between clear and thick green the thick green will win every time with my guys. Must be something nutritional about algae.
Now here's a question - If the puddles are full of tadpoles
does your horse just swallow them along with the water?