Here are the new wallpapers in OS X Lion Developer Preview 3, released this afternoon. There are poppies, ducks, and an actual lion.

They come courtesy of it’s all tech, who bundled them up into a downloadable zip file (26.1MB).

Check them out:

This is new the login screen in Lion Developer Preview 3, which was just released this afternoon. And we also have a list of some of the biggest changes.

Apple has just released the third major Developer Preview of Lion, the upcoming update of Mac OS X.

The 1.07GB update is avaliable to registered Mac developers running developer preview 2 update 2.

There’s also an update to Xcode, which is now version 4.1. Developers must upgrade Xcode to 4.1 after installing Lion Preview 3.

We’ll have more details soon…