Beautiful story. And yes "C'est du cinema" So it's not entirely true but it's very entertaining.
It's interesting to see how some people call it a remake. But from what I read it is not; this is inspired from Christian Moullec a metherologis who has some concerns about birds migration's dangers in our human forever changing the world's features... I read somewhere also that the actual 'adventure' was with Flamingo...But can't retrace where my reading was from! And now what I read about Christian Moullec seems to be about wild geese...So one should be aware of what one may read.
But back to 'Cinema'; French use that term as "make believe for fun". If one needs to disect everything before being able to enjoy the main course...So be it. Else this movie may give you some happy hours. At least for me it did. I don't understand French any more (than English) simply because I can hear well anymore and rely on CC. But this was good enough for me as the shots were so beautiful and I think young people would enjoy it very much as well. The main story is simply uplifting and its result is well worth it.
The last comment I read here made me feel so sorry for its author. I felt he completely derailed and missed how much is good about this film.
As usual, no star for me (it's against my belief!)