Good post, Tweva. Also, unusual activity can presage a cold front or storm–animals often feed heavily in preparation, then take cover. Unusual silence=something awry in the woods. Scolding of jays, or sudden liftoff of a heron can mean an unwelcome arrival (if you’re sure it’s not YOUR arrival.) A frenzy of bird activity can mean a predator (cat, fox, etc) in the vicinity esp if nesting time. I found and caught a beautiful young hawk once, by seeing the flurry of bird wings harassing him from across the field. For prey animals “eternal vigilance is the price of life.” Constant awareness of the animals could mean our lives one day.