What parrot with a penis?

I remember reading a long time ago about a parrot with a sort of retractable penis, I believe it was black in plumage and the males lost some of its feathers during mating season(I think it was his head feathers). I can't remember the name of this parrot and I thought I'd find it easily with google but that doesn't seem to be the case. It's bothering me that I can't remember what it is. Maybe it wasn't a parrot that I read about? I'm PRETTY sure it was though. Excuse the terrible title, *What parrot has a penis?*
Answers

Bird Boy

It's the Greater Vasa parrot and it is the females that shed their head feathers during brooding, not the males.

oikoσ

Negative. It is the ratite (running) birds and some waterfowl that have penes.