Hello Little Red Hen,
I wish I had 6 acres of forest, but without all those predators! That would be a perfect little chicken paradise.
My biggest concern here is stepping on a snake in the morning when I go to let my chickens out and I think Australia takes the cake when it comes to the biggest range of venomous and non-venomous snakes. Most of them live in the sea mind you, but enough live on dry land to be a concern. That reminds me, not long ago there was an article in the news about a Carpet Python here on the Gold Coast which managed to get into a chicken coop. The owner was using golf-balls to train the chickens to lay eggs in the nesting boxes and the snake thinking they were real eggs, swallowed them. He ended up in surgery in our local wildlife sanctuary and was named Callaway after the brand of golfballs he swallowed. Here is the link if you're interested, complete with the x-ray of Callaway:
http://www.abc.net.au/news/2012-03-27/python-swallows-golf-balls/3916306
I've heard that raccoons are a big problem as they are very persistant and determined at finding a way into a chicken coop, but bears and wolves sound equally as bad in my books. I'm trying to visualise what I would do if I saw a bear tearing after my flock of chickens. I don't know if I would even be able to aim a weapon straight. What is the one predator which bothers you the most?
It's good to have a sheep-dog, err I mean chicken-dog to look after your flock.
Was s/he raised with your chickens or was s/he just naturally accepting of them? In our neighbourhood we have some domesticated dogs that are let free to wander, and unfortunately they will take the opportunity to maim your chickens if you don't have a fence or if they escape. We once saw a beagle try to tear into a wild cockatoo and without our intervention the poor bird would have been killed.
I hope I don't sound too nosy, but I'm really quite curious to learn how other people raise their chickens especially in other parts of the world!
Cheers,
Gold Coaster