[Gpdd] BEHAVIOR: Maybe Chirping?

[zcan at comcast.net]

Joey-
  I have not yet heard piggies singing like birds, but your description 
sounds like the "boop boop" radar sound the piggies make as they travel 
around. Does the sound stop when Pebbles stops moving? If so, that 
would definitely be the 'boop boop'. Isn't it cute?

Enjoy!
Heidi, with Lily and Jodie on her lap
and Shelby, Zeke, and Zoe Rose in her heart