Will you come to our cottage (Shaver's Creek) this summer? 👉👈 Stupid Canadian wolf birds, otherwise known as loons, pass through Pennsylvania during their migration up north each spring. It's not uncommon to spot loons on Lake Perez between March and June each year! So don't be alarmed if you hear a haunting sound - no wolves here! Like other birds, their calls serve to keep tabs on one another and establish their territory. Have you seen a loon before?