Read the stickies. This forum is not for exchanging diagrams. The diagrams you're looking for, if there are any, are probably copyright protected. If there are free diagrams of a kangaroo on the web, you can try searching with google.
A quick search of the origami database shows that there are no kangaroo diagrams available online. Montroll apparently has 4 different kangaroos published in 4 different books.
Don't be so hasty to attack all diagram requests. Look at the description of the Diagram forum:
Diagrams
Diagram related issues ; where to find them, how to draw them etc
It wasn't like he said, "Can someone email me diagrams of John Montroll's Kangaroo from Origami for the Enthusiast." Instead, he asked if anyone knew of any kangaroos, a perfectly legitimate query. (And then he edited his post saying he had already found what he was looking for.)
