Calliope Hummingbird Clark's Nutcracker Immature Burrowing Owl Upland Sandpiper Upland Sandpiper African Collared-Dove Eurasian Collared-Dove Swainson's Hawk Western Tanager Spotted Sandpiper North Dakota Minnesota Cedar Waxwing Red-eyed Vireo Common Loon Red-Necked Grebe Immature Red-Necked Grebe Ring-Billed Gull Fort Union Trading Post National Historic Site Gray Catbird Black-and-White Warbler Montana Pronghorn Broad-Tailed Hummingbird Rufous Hummingbird Little Blue Heron Spotted Sandpiper Eastern Kingbird American Goldfinch Immature Northern Rough-winged Swallow Little Blue Heron Immature Western Meadowlark Mountain Plover Mountain Plover Bullock's Oriole Western Wood-Pewee Bullock's Oriole Mourning Dove Immature Chestnut-Collared Longspur Lark Bunting Chestnut-Collared Longspur Eastern Kingbird Burrowing Owl Chestnut-Collared Longspur Sombrero Marsh