The thing that strikes me about pheasants, with the exception of my current visiting super-pheasant, is that their behaviour seems counter to survival. We gets quite a few of them near our (semi-rural) house, and often the first I'll know of one nearby is when it runs away squawking loudly, thereby attracting attention to itself and, if I were a shooter, pretty much ensuring its own death. Hardly survival of the brightest is it? Though to be fair, I suppose it might be a strategy that has developed to distract predators from the nest.
I remember one particular occasion when I ws driving along a quiet country lane, finding about 20 -30 pheasants, nearly all male, standing literally in the middle of the road. They had no idea at all of danger or caution... bred purely as cannon fodder. Reminded me of the Monty Python village idiots.
Pheasants do seem to be shown up in the intelligence stakes by the red-legged partridges, which in contrast, although presumably also bred in capacity to provide 'sport' are much cannier.. and rely a lot on group safety tactics. We often get 6 to 12 of them together in our garden, and in contrast to the nearly tame pheasant they are very wary indeed.
K.