I actually have that coming up when I log in at work. The powers that be "upgraded" our firewall security settings and I've been presuming rfalconcam was triggering it now for some reason. Maybe something else after all. It started at about the same time I started getting security warnings for adobe flash player again.
Just my thoughts, but it's probably about not being trapped if a predator arrives. When they're egg brooding the non-sitting bird is generally watching &/or patrolling the area to keep it clear.