Metalbird bird silhouette tree spikes, make the prefect decorative compliment to any tree, fence post, or wood pole. These beautifully crafted life like bird silhouettes will transform your backyard garden area into a work of art. Each bird is made of Corten steel and as each piece is exposed to the elements, it will form a natural protective patina. Inspired by the Outdoors stocks the original Metalbird line of products. Shop with us and save.