Birds, World War, Disney-style (Not Valiant).

Hi BCDB,

A year ago or so, I saw on TV the last part of a movie which was animated in a quite Disney-like style (no 3D), which I've never seen the title, and don't know about any of the character's names (I blame myself for not having taken notes at the moment). Searching for it today, it feels like it never existed, though the animation was great (and recent).
So as of today I know a bunch of animated movies featuring birds, even some hidden pearls, but definitely not what I seek.

Disclaimer : It really is not Disney's Valiant.

Here it is : it's about semi-anthropomorphic birds, in a human world war context. The main character is a handsome white american adult bird (can't tell the specie). He is quite strong, and a few feathers on his head make a nice haircut. He has a lover, who stays sheltered, as I recall. During the movie, he gets allies to help him.
The villains are, as one could guess, bad Nazi-looking Eagles and Falcons.
The main character must carry something very important to humans allies (something like a white package), and the villains are supposed to prevent him from doing so.

I also remember two scenes :
-> At one point of the story, two (friendly) birds get drunk and recall their memories of France. In their trip, they recall the "Moulin Rouge" and dance with French female birds on a Jazz track, with various flashing lights.
-> Near the end, the main character is close to achieve is goal (it is night time, in a small soldier camp), but gets violently grounded by a villain. A dog prevents the villain from delivering the final blow to the hero.

This is not much, but I can't recall anything else.

Thanks a lot in advance.

Thanks for your fast reply, but as I said, I know it is not Valiant.
Valiant perfectly fits the theme, but I can assure you it is not what I seek.
Thanks a lot anyway.

One thousand thanks, that's it ! You made my day.
I'm definitely going to update Wikipedia's lists.
Thanks again.