30 days beyond Gb1-21 comes a haú glyph with 7 + 12 = 19 feathers:

glyph numbers are counted from honu at Gb6-26 (and with Gb8-30 counted twice)
314		29		86
	Gb1-21 (315)		Gb2-25 (345)		Gb5-14 (432)
	118 = 4 * 29.5

This haú could indicate the end of the 50 day long dark period between the morning and evening stars. 2 * 25 = 50.

The rising Venus fish at Gb5-14 has ordinal number 432, equal to the number of days in the H text.

584 - 314 - 30 = 240, i.e. Gb2-25 seems to have been positioned with care.