Harris hawks seem to intensely resent other species of hawks. Bear this in mind while in the presence of people with other birds and while hunting. Therefore, this must be my territory. Disaster can occur at laser speed and your bird or another can be put out of commission, perhaps permanently, in seconds. An ounce of precaution is worth much in falconry.
Defensive falconry is the order of every day.
Harris hawks will fly in an ever-expanding number of styles. They'll soar, hunt off the fist, car hawk, follow as a Red Tail will or whatever they determine works. To me, they are the falconry bird of choice. A Harris will not show the blistering speed of an Accipiter, such as a Goshawk or a Cooper, off the mark. One breeder I know, has reared all these birds together and flown them together.