2024 ADDITIONS Bald Eagle (Immature) -Rocky Mountain Arsenal NWR, Denver, Colorado. Bald Eagle ( Shy of full maturity ) - Rocky Mountain Arsenal NWR Denver, Colorado Ferruginous Hawk - Rocky Mountain Arsenal NWR Denver, Colorado Frigate Bird - Galapagos Bison in Winter - Rocky Mountain Arsenal NWR Denver, Colorado Marine Iguana - Galapagos Blue Footed Booby - Galapagos Black Chinned Hummingbird - Minturn, Colorado Greater Prairie Chicken - McCook, Nebraska Red Winged Blackbird - Riverbend Ponds Natural Area Fort Collins, Colorado Black Chinned Hummingbird - Minturn, Colorado Greater Prairie Chicken - McCook, Nebraska Red Winged Blackbird - Riverbend Ponds Natural Area Fort Collins, Colorado