Crowdstar brings the Chickens home to roost in Happy Pets

Like the Horse Stable and the Dino Den before it, Happy Pets' new Chicken Coop need to be completed before players can get their poultry in motion. Once they do, they're receive a free Orange Chicken, the option of four more chickens at the store that can be purchased with coins, and another four that can only be bought with Facebook Credits.
Happy Pets Chickens
Happy Pets Cerulean ChickenThere's no telling what these chickens will grow up to look like, but these blinky, wide-eyed, rotund chicks sure look cute! Here's a list of them at the store, from cheapest to most expensive:

    White Chicken - 31,795 Coins
    Yellow Chicken - 33,795 Coins
    Brown Chicken - 35,795 Coins
    Cerulean Chicken - 37,795 Coins
    Black Chicken - 50 FB Credits (or $5.00 USD)
    Purple Chicken - 52 FB Credits (or $5.20 USD)
    Red Chicken - 54 FB Credits (or $5.40 USD)
    Pink Chicken - 56 FB Credits (or $5.60 USD)

Your first step to getting a Chicken Coop is to buy the frame for 800 Coins. This purchase will also net you 100 XP. After that, you'll need to collect the 8 following items to unlock your coop: Screwdriver, Screws, Saw Horse, Tape Measure, Hinges, Chicken Wire, Rake, and Saw. But you're going to need 5 of each item, so you'll have to have collected 40 items in all.
Happy Pets Building Materials gifts page
To get them, you'll need the help of other players to send them to you from the gifts page. It'll be a slow and tedious process, since you can only get one per day, per player. To add on the frustration, not all the items will be available on the gifts page because they have to share space with building materials from the Horse Stable and Dino Den. This means items will rotate on and off the page on a daily basis.

If you're feeling lazy, or just rich, you can also grab items for your coop at 5 Facebook Credits ($0.50 USD) each, while the whole caboodle goes for a lump sum of 148 FB Credits ($14.80 USD).