remove alias aegolius (27) -> saw-whet_owl (1)
remove alias saw_whet_owl (0) -> saw-whet_owl (1)
remove implication saw-whet_owl (1) -> true_owl (2262)
remove implication northern_saw-whet_owl (8) -> saw-whet_owl (1)
remove implication boreal_owl (20) -> true_owl (2262)