A: I don't know where you live, but check out EatWild.com, a website that lists people raising pastured chickens, and other animals, by region. Also, EatWellGuide.org will direct you to good farmers in your area; just type in your zip code. Look also for the logo of the Humane Society, which certifies meat, egg and dairy producers who follow humane practices.
Q: What food is in season when?
A: Ask a friend who gardens, or go to a farmer's market and see what's for sale. It all depends on where you live. In general, though, the winter is dominated by root crops and hardy greens like kale and cabbage. Spring: lettuces, strawberries, peas, spinach; summer: all the berries, tomatoes, melons, summer squash (note the name!), cucumbers, peaches, string beans, herbs; fall: broccoli, cabbage, winter squash, hardy greens, grapes, apples, pears.