i expected to ender Pearl onto the block.
What happened was i did not ender Pearl to the chosen block but a block 15 blocks away

Create the compact animal breeder as shown
The one below was used for cows
Jump in and ender pearl onto the blocks shown on image with highlighted blocks

Video link:
http://www.youtube.com/watch?v=Lgd4Or5G3iY&feature=youtube_gdata