Does it count as displacement if birds fly off in fright when a hawk or bird of prey approaches the feeder?

For this study, we are limiting displacement to when one individual bird tries to take over a resource occupied by another individual bird. Please do not report a displacement unless the source bird is actively taking over the position of the target, for example, one hawk chasing another hawk from a perch, or a shrike chasing a chickadee off a suet block.