Very well.
To the OP, keep your birds in a secure pen/coop and you won't have to worry about the bobcat or her youngsters. Secure pens involve predator/anti-dig aprons, a strong roof, ensuring the birds are safely indoors at night or using wire with spacing so small a predator is unable to reach through and strong enough to prevent a carnivore from breaching it. The addition of an electric fence as a deterrent (suggested by cmom) will round out a predator-proof run. If you allow the birds to free-range, predation is a risk you are willing to take. Personally my birds stay penned and enjoy time out when I am outside working and have the ability to keep an eye on them. Two when I can spare them.