The unnamed falcon was a ferocious bird that kidnapped Julien (to eat), and framed Kitka for the crime. He is a minor character in the "Madagascar spinoff TV series The Penguins of Madagascar.
He swooped down in the night, knocked Mort to the ground, and snatched away Julien. The next day, the penguins (along with Mort and Maurice) ascend the Consolidated Amalgamated Building in Midtown to save him. They find Julien cringing on the ground, and the bird attacks. As the falcon zooms in on them, Kitka clashes with it and spars fiercely, but is no match for the male. Kitka is knocked to the ground, and the male turns on the penguins. The penguins try and even Maurice joins in, using Mort as a nunchuck. But the falcon prevails, being able to dodge and strike at the penguins from the air.
After Skipper realizes that the falcon is more than they can handle, he follows the falcon through the air on a hook gun that is attached to the falcon's leg. Julien meanwhile is describing the battle to Kitka with "really cool sound effects". Back in the skies, Skipper leaps onto the falcon's back and kicks it repeatedly. The falcon however, is quick to hurl Skipper to the ground. Skipper manages to hit a flagpole and rocket back up to stop the falcon. He grabs it's neck and directs it over the building and into a heating funnel. Skipper manages to leap off the bird before it crashes through the pipe, and falls to an unknown fate.
Madagascar: Escape 2 Africa
Madagascar 3: Europe's Most Wanted
All Hail King Julien