Explanation here:
https://www.behindthename.com/bb/game/5161272
SO1: VIRA (Virginia Rail)
SO2: REPH (Red Phalarope)
DD: EUDO (Eurasian Dotterel)
DD: AMCO (American Coot)
DS: WISA (Williamson's Sapsucker)
DS: NOHA (Northern Harrier)
DS: LEOW (Long-eared Owl)
DD: SATH (Sage Thrasher)
DD: CAVI (Cassin's Vireo)