I've been researching breeds for my first go into backyard chickens. I've narrowed my choice down to a few and would appreciate some feedback on my concerns/questions. 1. Dominiques- Are they cold hardy enough for Northern Vermont? 2. Australorps or Orpingtons- Will their combs get frostbit? Do they forage? They are big and I'm looking for layers more than meat birds, do they eat a lot of feed? 3. Wyandotte- Seems like a good choice for us but this warning about some individuals being aggressive is cause for concern as we have a two year-old who is often out in the yard. I would just like to select one breed and stick with it as I'm led to believe that mixing/matching many different breeds of birds can lead to socialization/pecking order issues that I would rather avoid. Thanks for your time and have a great day!