I've never had the pleasure of meeting a senegal, but I know that GGC's are really similar to budgies.
One of the main differences is concentration - Budgies can't focus on anything for more then a few seconds while GCC's can focus for a good few minutes.
Budgies tend to chat idly to themselves for hours, while GGC's make more noise less often.
GGC's
need scritchies and cuddles. Budgies don't require as much attention.
Socially they are very similar. They both like to hang out with the flock, although GGC's tend to notice when they're left out of something and will try to attract attention. Budgies are happier to be close to the attention, GGC's want to be involved with the attention.
Basically budgies are like hyperactive little clowns with the ability to always find something interesting to do.
GGC's are like miniature toddlers that love cuddles and scratches.
Overall I think you can develop a stronger bond with a GGC, but they can become quite needy.
Hope it helps!
