I am thinking about getting a pair of ostriches and was wondering how big of a pasture they need? and what they eat (from feed store) and how much do they eat? and how tall of a fence do they need and what type? horse fencing, field fencing, hog fencing or what type of fencing do I need for them, and how much and where can I find 2 or 3 baby ostriches, (proably to late in the year now)