I live in a dense urban neighborhood in Portland OR. Yesterday, my neighbor comes knocking on my door, saying one of my girls is loose. Much to our surprise, it was someone else's hen running up and down the street. Apparently someone had been driving a truck with an open chicken coop in the back, and this poor girl must have fallen off. After much chasing (she was terrified), we put her in a temporary cage in our front yard and posted a message to Craigslist. As we only have two hens now (we can have 3 according to the city), I'd love to have an extra hen, and she is pretty too. My questions: 1 - How long should we wait before beginning to introduce her to our flock? 2 - What precautions should we take? I know we should let them see each other without coming into contact. Thanks for your help! As a new chicken keeper, I have found this forum invaluable.