That is a face that even the mother couldn't love.
Even with the above comment I am willing to pitch in on this project. I am an engineer by training so I try to frame any project early on with the requirements. I understand that the requirements first route is kind of boring because we all would like to do something because that is exciting and fun, no chance of letting the magic smoke out when you are just working with pencil and paper. Here are some questions I have after thinking about this project for 5 minutes:
- Does the egg have to weigh roughly the same as other eggs to spoof the Vulture?
- Can the egg be replaced if the battery life is a problem, you put the original in why not a second one?
- Given the real eggs and the fake egg will have different weight distribution the fake will move differently from the real eggs, is this error going to be too high for the study? One being liquid changing to a bird with structure makes it difficult to make a fake egg close to a real egg.
- What is the maximum distance allowed between the egg and the RF recorder or repeater?
That sums up my concerns after giving the project a very small amount of thought, if you would like to have me help out leave me a PM.