I agree, unless Blackhead is a problem, chickens and turkeys do very well together. The amount of room you will need will depend on the size of the breed you choose. In the average size breeds, Toms(or Gobblers) mature around 35 pounds, Hens (or Turkeys) around 25#.
10 sq. ft. is a good rule of thumb, per bird inside the coop and as much run space as you can afford to give them. While they are very young, turkey poults are quite fragile and it is the drafty chill that will kill them, more so than the temperture. I start them off at around 95 degrees, right out of the 100 degree incubator and lower the temp. about 5 degrees every week or so as they feather out. Here in the Southern US, this time of year, this usually takes 3 to 4 weeks, but where you are in Canada, it will probably be more like 8 weeks. Just watch their actions. If they huddle together, they are cold and need more head. If they stay as far away from the heat source they can get, they are too hot. They should be dispersed throughout the brooder, chirping and pecking, eating and drinking. Feed them a 28% protein Turkey or Game Bird crumble in a shiny aluminum dish or aluminum foil covered dish, because they will be attracted to the shine of the "Bling Bling" and learn what food is easier. The same with their water, a few bright shinny marbles in the bottom of a shallow water dish will attract them to the water and not be deep enough to drown. A baby chick is often put into the brooder as a tutor for the poults, so they are often reminded where the food and water is. Try not to change the location of their food or water while they are in the brooder, as it might confuse them. Turkeys are not dumb, they are quite smart and inquisitive, but they are more dependent on their Mamas than chicks are, while young, to show them the ropes. When you put them outside, block any cold wet or chilling wind, until they acclimate to the outside temp. variations and put them out on a nice day after it starts to warm on a day when the night temps will be mild.
As adults, turkeys are tough as nails, but they do take extra attention when young.
Also, until fully grown, turkeys fly very high and very often. It is not easy to keep them off roof tops and cars or out of trees, so I suggest people keep turkeys where they will not bother the neighbors. They are quite noisy, too and will signal whenever someone or something approaches.
I hope this answers some of your questions and if you have any more, just ask away. Have fun with your turkeys, they are quite personable as well as delicious! Please let us know how it turns out for you and what breed you get?
