Yes, the ones that couch are wanting to mate with you (the rooster). Rub their back next to their tail feathers and watch. They will fluffy up after and make cooing sounds.
See a video of them doing it here- http://www.youtube.com/watch?v=moNsSAOvySw
Here is a double yolk that I got -
Here is an Extra Jumbo that was laid yesterday. I haven't cracked it yet because I am sick, but it's at least a double yolker, if not a triple yolker. Maybe I should candle it to see?
See a video of them doing it here- http://www.youtube.com/watch?v=moNsSAOvySw
Here is a double yolk that I got -

Here is an Extra Jumbo that was laid yesterday. I haven't cracked it yet because I am sick, but it's at least a double yolker, if not a triple yolker. Maybe I should candle it to see?
