I have got 6 months old Great Pyr/Lab mix pup. She is ok with chickens - does not try to grab or chase them - although we have only tried on leash so far. She likes to lay or sit and watch them. But she does not guard them. I.e. she will not necessarily come to look at them if they make alarming sounds and she ignores any wild birds flying above.
Does she need to be thought to be more protective and bark at things that don't belong and how, or will it come to her with time?
Does she need to be thought to be more protective and bark at things that don't belong and how, or will it come to her with time?
This does not mean your dog will not guard your chickens. My dog totally ignores the birds overhead, but if a neighbor dog wanders over she gets between the strange dog and the chickens with her fur up and tries to chase them away from the chickens (she does the same if my cat is outside and will protect the cat from strange dogs). My dog will also alert me by barking to any strange person or animal on the property... but again, things she does not view as threats she does not alert to. She generally doesn't alert to rabbits and rodents but will alert to coyotes, strange dogs and people, bobcats, etc. I suspect if something like a weasel was here my dog would not alert (not viewed by a large dog as a threat), but she would likely get quite excited and try to catch it. 

... they didn't care, nor I, if it was a dove, or a hawk!