No, even if it looks like a Birdy 1 or a Birdy 2 World, its none of those two old Birdy with a frame made of welded tubes, the geometry of the frame is different, the construction is different (look for instance at the semi-integrated bearings of the fork, the seat tube clamp...).

Its a newly designed frame, a kind of Birdy 3 with a frame made of welded tubes instead of hydroformed.