Monk Parakeet's - the little green birds you almost never notice

I've meant to mention the green parakeets we have here.  You can walk by a flock of them on the grass and never notice them, gee wonder why?
I've heard different takes on them, some saying that they are not parakeets at all.  I Googled them and came up with this Wiki entry.
The picture sure looks like them!
http://en.wikipedia.org/wiki/Monk_Parakeet