The black ones were once the dominent variation in the northern pine country until the pines were cut down.Being black it was easier to hide in the thick shadowy world of the pine forests,the black fur allowed them to soak up rays of sun from the tree top perches in winter.Soon after the grey squirrels became more and more numerous and moved north.Is it the same with Bigfoot? Now that the pines are growing back and more land is being protected are the black ones making a comeback? Is that why there are more sightings than in the past or just more people to see what was always there?No researcher should disregard the past when contemplating going after those wily old Squatches.As the country warmed the southern varieties of orayfish started to steadily march north and still are.Does that have any effect in drawing more Sasquatches to the area.We will never know until someone finds more of the answers. I think you would do well to heed the thought that any area that you search must have the variety of food sources,good water and physically comfortable micro climates and the topography that makes those climates.As a complex being Sasquatch has shown that he has the skills to use all those things to his advantage and remain safe from our little invasions and hunting seasons and all.Rehashing left coast sightings makes for some good reading and an occasional clue.But nothing but practise and fresh air hunts will give you the perspective on many of the unknowns that you seek.Don't be afraid but don't be foolhardy either.Man Vs Wild is something of a comedy and Bear will one day break his leg and Les will someday actually catch a fish.Yet,they are using just a fraction of the knowledge they should have and are downright dangerous to immitate in thee real woods and swamps.No wonder they are always shivering and cold or starving out there!It's all so unneccessary!