Hello all, This is my first time raising chickens and I have 4 18 week old birds. 2 ISAs, 1 Partridge Rock and 1 Easter Egger. I was wondering when I should be expecting to get our first egg. I know ISAs are prolific layers so we keep checking every day and nothing yet. I kind of figured we would be seeing an egg soon. Their combs are super red and getting bigger every day and they’ve become super chatty lately. Any other signs I should be looking for? How about for the Easter Egger and Partridge Rock? Thanks in advance! Pics attached if that is at all informative.