Complex sentence: The shooting of the Principal Bird deity is one of the main episodes of the Classic Period Hero Twins myth; but strong arguments plead against the Principal Bird Deity's equation with Vucub Caquix, a bird demon shot by the Popol Vuh Twins.
Split into simpler sentences: The shooting of the Principal Bird deity is one of the main episodes of the Classic Period Hero Twins myth. Strong arguments plead against the Principal Bird Deity's equation with Vucub Caquix, a bird demon shot by the Popol Vuh Twins.