I completely missed seeing the 4th picture with the Cochins, and I agree that the Cochin on the left is a roo and the one on the right is a pullet. Thanks for quoting me or I might not have discovered my mistake in missing the 4th picture.I see one pullet in 3rd pic on right and the bottom pic the Cochin on the left is a cockerel and the one on right looks like it might be a pullet, I believe the rest are cockerels, expect maybe 1, not to sure on that one!