Ducklings Leaping....well falling...off the top of university building...
http://www.youtube.com/watch?v=iIMawW51cjs


Here is another... showing that this seems to be a common (to the tune of Ben Folds Five - Still Fighting It)
http://www.youtube.com/watch?v=B5qnvZSg1XM
A comment from videosift related to this video said:
I guess those with a penchant to perch over concrete don't propagate...

 

That second clip is from the discovery chanel's "Planet Earth" i almost shot beer out of my nose when i saw it. they actually BOUNCE when they hit the ground!

 

lol..the last duck walked around in a circle then right over the edge..lol..cant help but laugh

 

Tough little critters!

 

i was waiting for the last duck to say hell no, and walk back toward the middle of the roof.