I got 2 olive Egger chicks last week. I’ve been reading here about wing/feather development in helping to sex chicks. I know it’s wayyy to soon to tell, but there is a significant difference between the two. I can see 3 rows of wing feathers and tail feathers on the larger one, and only 2 rows and no tail feathers on the other. Could the tailess be a cockerel, or is there still no telling? Both purchased as pullets.