Today is day 21 for my 6 bantam Columbian Cochin e g gs. The first chick hatched around 3am this morning, and the 4th just hatched around 4pm this afternoon. When the last chick hatched, my humidity spiked to 74%, so I quickly grabbed the 2 remaining e g gs and candled/tapped them. 1 of these e g g s is no good, but the other e g g holds a peeping chick. How long should I wait before I intervene? Oh yeah...the humidity only dropped to 68% with me opening the bator, and the temp only dropped to 99 degrees.