I'm sending out a list of standardized and commonly used hawk abbreviations, used by Hawk Mountain, Cape May, BirdHawk, and the Hawk Migration Association Of North America. These abbreviations are not used to obfuscate the data, they are used to save time for the sender and are easily remembered. I hope these are of use for future reference. Paul Fritz (BV)Black Vulture-Coragyps atratus, (TV)Turkey Vulture-Cathartes aura, (OS)Osprey-Pandion haliaetus (ST)Swallow-tailed Kite-Elanoides forficatus (MK)Mississippi Kite-Ictinia mississippiensis (BE)Bald Eagle-Haliaeetus leucocephalus (NH)Northern Harrier-Circus cyaneus (SS)Sharp-shinned Hawk-Accipiter striatus (CH)Cooper's Hawk-Accipiter cooperii (NG)Northern Goshawk-Accipiter gentilis (RS)Red-shouldered Hawk-Buteo lineatus (BW)Broad-winged Hawk-Buteo platypterus (SW)Swainson's Hawk-Buteo swainsoni (RT)Red-tailed Hawk-Buteo jamaicensis (RL)Rough-legged Hawk-Buteo lagopus (GE)Golden Eagle-Aguila chrysaetos (AK)American Kestrel-Falco sparverius (ML)Merlin-Falco columbarius (PF)Peregrine Falcon-Falcon peregrinus