remove alias aegolius (26) -> saw-whet_owl (1)
remove alias saw_whet_owl (0) -> saw-whet_owl (1)
remove implication saw-whet_owl (1) -> true_owl (2021)
remove implication northern_saw-whet_owl (8) -> saw-whet_owl (1)
remove implication boreal_owl (19) -> true_owl (2021)