Hi Marcin, I took a time to test an approach and I got some good result. But due the amount of tries to reach the right way I can't prepare a step by step.
So, I'm sharing the wings file and then you can make the necessary adjusts - if you think it's usable, of course.
The file has a fold with objects in the sequence of the first steps. The image bellow has some intermediary steps. The final steps are basically to "glue" the pieces - the hard work.
I hope it can be useful.
![[Image: origami-bird_zps9ftaloqi.png]](http://i1330.photobucket.com/albums/w578/Micheus/Mobile%20Uploads/origami-bird_zps9ftaloqi.png)
So, I'm sharing the wings file and then you can make the necessary adjusts - if you think it's usable, of course.

The file has a fold with objects in the sequence of the first steps. The image bellow has some intermediary steps. The final steps are basically to "glue" the pieces - the hard work.

I hope it can be useful.
![[Image: origami-bird_zps9ftaloqi.png]](http://i1330.photobucket.com/albums/w578/Micheus/Mobile%20Uploads/origami-bird_zps9ftaloqi.png)
![[Image: origami-some-steps_zps3li6p5mn.png]](http://i1330.photobucket.com/albums/w578/Micheus/Mobile%20Uploads/origami-some-steps_zps3li6p5mn.png)