I don't always use my macro lens for my closeups. Sometimes, the 400mm can do a better job since I can be further away. This helps to make the creature feel safer and have less chance of leaving. Of course, in this case I think the fence helped too.
Macro Monday is easy to play, snap a macro (or any close-up) photo, post it on your blog and come back here and sign MckLinky. Don't forget to visit each other. :)