The Pig in the Pond by Martin Waddell - A pig takes over the pond at a farm. Has some great call and response lines.
The Problem with Chickens by Bruce McMillan - The chickens stop laying and the owners have to figure out how to get them to start again.
Sakes Alive! A Cattle Drive by Karma Wilson
The Cow Loves Cookies by Karma Wilson - This humorous beautifully written in rhyme story the author of "Bear Snores On" tells of a farm where lives a cow who loves to eat cookies. The writing is fun to read aloud and the illustrations are beautiful stylized watercolor and ink drawings. A fun entertaining read all around.
Old MacDonald by Jessica Souhami - A fun lift the flap book that you can read and sing with your story time kids.
My Farm Friends by Wendell Minor- Sweet book that is easy to read and has some great big illustrations. While a little forgettable it still is a good read aloud.
Farmer Duck by Martin Waddell- A lazy fat farmer makes poor little ducky do all the farm work while he eats bon bons in bed. That is until the farm animals hatch a plan. I love that the animals don't talk they just make their steroptypical animal sounds.
Hello, Day! by Anita Lobel- Better suited for babies. Really nice illustrations though with simple text where you can have the audience make animal sounds along with the book.