Is this a Spy Camera?

[PhoenixSet]

Hi, we have some wacky next door neighbors who have this device pointing towards our backyard. Does anyone know what it is? It is hanging off of their eve. We are pretty sure it is not a light (too small, no bulb showing). We kinda thought it was a motion detector but knowing them we more think it is a camera. Thanks for your help.
I hope I liked photos correctly, my first time using Image shack:



http://img182.imageshack.us/content.php?page=done&l=img182/4328/1002642gs0.jpg

http://img501.imageshack.us/my.php?image=1002647sr1.jpg

http://img501.imageshack.us/img501/802/1002647sr1.th.jpg

 

[SocceRich20]

It's an antenna, probably for radio or TV.

Here's a Sirius XM home antenna:

 

[PhoenixSet]

Yes, that's it I recognize the design on top, the print was too small for us to see what was written, thank-you.