Absolutely loved this explanation- especially the cartoon like picture which correctly helped me understand exactly where I am measuring! Previous to which, from just reading various explanations, I would have measured under (not between) the pelvic bones and been completely misled.
Without catching the chooks, I do find that you can ALSO tell fairly clearly through close observation at a distance of their behind and their waddle/walk.
Non- layers legs are closer together and run like road-runner, neck elegantly extended far forward. Layers look wider between the legs when viewed from behind, giving them a broad, slightly wider, lower to the ground look and tend to waddle-run, sticking their necks up a little and lifting their wings out a little for balance. It's far easier to catch a fat, laying hen than a lithe, little chicken runner too. Here is my fluffy butt after her winter moult and the egg she proudly lay on the Winter solstice!
Without catching the chooks, I do find that you can ALSO tell fairly clearly through close observation at a distance of their behind and their waddle/walk.
Non- layers legs are closer together and run like road-runner, neck elegantly extended far forward. Layers look wider between the legs when viewed from behind, giving them a broad, slightly wider, lower to the ground look and tend to waddle-run, sticking their necks up a little and lifting their wings out a little for balance. It's far easier to catch a fat, laying hen than a lithe, little chicken runner too. Here is my fluffy butt after her winter moult and the egg she proudly lay on the Winter solstice!

