Feathers indicating gender

[Anonymous__]

Since the curl on his tail isn't a male thing, if he has chicks will they have a little curl on their tails when they grow up?

 

[LaFleche]

Since the curl on his tail isn't a male thing, if he has chicks will they have a little curl on their tails when they grow up?

Just a moment, let me grab my crystal ball to see...

Edit: Just joking. As both parent birds contribute to the traits of their future offspring to 50% each (respectively including the traits of their ancestors), there is no way to know beforehand.