My flock is 21 weeks old and about half of them are looking ready to lay but no egg squat, no egg song, nothing. The chickens free range in the front yard when we get home from work. Last night I put them away for the night still looking for anyone squatting or showing signs that they were going to begin to lay. This morning when I walked out the front door my foot hit something, and I looked down, and it was a pullet egg. My first one! Then when my DH walked to his car he found an egg under a bush near his car. Egg #2!!!! They are now locked inside so they get the hint where they need to lay. Today nothing. Just some screaming chickens. How long can they 'hold' an egg? I'm wondering if they are going to lay today if they are hoping to get outside and lay there? Dumb question but these are my first pullets.