Rumpless Orpington Gene?

[SunnyFLChick]

These are my two lavender Orp roos. As you can see one has a classic rooster tail and one has no tail at all. No one is picking on him - he just never grew one. Is this common in orpingtons?
(Hens are also in the background for comparison. )

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[Firekin1]

These are my two lavender Orp roos. As you can see one has a classic rooster tail and one has no tail at all. No one is picking on him - he just never grew one. Is this common in orpingtons?
(Hens are also in the background for comparison. )

Sent from my SCH-I535 using Tapatalk

Ummmm No, however, there is a recessive mutation that can occur in some birds and I assume that's what you have...very interesting.

 

[donrae]

A picture of him standing normally would help, but he doesn't really look rumpless, just tail-less. Is he actually lacking a tail bone? Birds that are have a down-ward sloping build that I'm not seeing here.

 

[MelissaMallard]

I have a lavender orpington pullet that is shaping up to be rumpless, as well as a rumpless black orpington pullet... I was curious which is what brought me here.

 

[Emma_Bruffy]

I know this is a SUPER old thread but my 3 lavender orpingtons have the same thing