Sierra Birds is available as a T-shirt and a sweatshirt from Big Pockets.

Big Pockets has a new line of specialized birding sweatshirts and T-shirts, many with colorful artwork such as the Sierra Birds, Kingfishers of the World, Tanagers, The Birding Cure, Warblers, Feed the Birds, Advice from a Bluebird, and Life is Simple: Eat, Sleep, Bird. Other popular birding apparel from Big Pockets includes their Field Pro Jacket, Insect Shield and UPF Sun Protection T-shirts and Insect Shield Lightweight Hiker Socks, Scarves, and Baseball Hats – plus their long-time favorites, the Big Pockets Vests.

For more information and to view all the Big Pockets birding apparel and gear, see Birding Gear and Apparel, Outdoor Gear, Camping and Trekking Gear, Big Pockets Clothing