This Is a Bird Nest Made of Coat Hangers

 

You've got to adapt to survive and the Jungle Crow is a survivor. Amusing Planet reports that many of these birds live in Fukuoka City, Japan. They're open minded about building materials. Some freely use coat hangers left outside:

In such a large city, there are few trees, so the natural materials that crows need to make their nests are scarce. As a result, the crows will often steal hangers from the people who live in apartments nearby, and carefully assemble them into intricate nests. The completed nests almost look like works of art.
Nests built from hangers were also discovered in other Japanese cities. In Fukuoka City, the Jungle Crow would often make nests atop power lines during the breeding season that could cause large blackouts due to short circuiting. The Kyushu Electric power company actually has "crow patrols" that search out and destroy hanger nests on their power grid.

You can see more photos of these nests at Amusing Planet.