History of the discovery of ANCA (Anti-neutrophil cytoplasmic antibody) 1  In 1982, David Davies, an Australian pathologist observed that 'a subset of patients with focal necrotizing and crescentic glomerulonephritis had circulating antibodies that bound to the cytoplasm of normal neutrophils' (5, 6).
The most common birds found in the United States and Oklahoma include the European Starling, House Sparrow, House Finch, American Crow, American Robin, Downy Woodpecker, Mourning Dove, American Goldfinch, Pigeons, Common Grackle, Hummingbird, Swallows, Wrens, Mockingbirds, Ospreys, Thrashers, Vireos, Wood Warbles, and Blackbirds.
The Ruby-throated Hummingbird is the most common and widespread species. It is found across the eastern 3/4 of Oklahoma and is the only species found in the eastern half of the state. The Black-chinned Hummingbird is found in the western quarter of the state and is most common in the southwestern corner.