I have 6 2 -2.5 week old leghorns and 5 have 3 rows of feathers on their wings and noticiable tail feathers. one has very slight tail feathers and only 2 rows of wings? Does this mean anything? i marked in blue the 3 rows (with a half-circle per row) and the 2 rows with 2 half circle shapes (but it looks like a 3) adn she shorter tail.