Well, I certainly hope so. If a bird lays the wrong color of egg, it is a very strong indication that the bird is not a purebred.
If I watch a RIR lay a blue egg, my first thought is not "What a great RIR!" My first thought is "Uh-oh. There was an EE in the woodpile."
I have birds who are 9 months old and I haven't made my final selection for my breeding flock.
I can take a few of the better birds to show and let the judge sort them out, because different judges will place the birds differently. It's easier for me to select my breeding stock than it is to...
It's very difficult to discover what is correct structure in birds and why. With dogs and horses, thee are hundreds of books on structure and movement. Nothing on poultry. The SOP is helpful, but not by much. Better than nothing.
To anyone who is interested in the SOP, the APA SOP is worth every penny of the purchase price. It is a beautiful solidly made book, with a stitched binding and it is full of gorgeous color plates. I highly recommend it.
I'm pretty new to showing birds, but I've got decades of experience with show dogs and show horses. My experience has always been that beginners get fixated upon easy to understand and easily visible features because the important stuff, like structure or inherited disease, is much harder to...