Juvenile Starlings

Hi all, 

We live in the countryside, surrounded by woodland, and consequently never get starlings- just too rural!

However, last week, we got an influx of first year, juvenile starlings on our feeders (yet another set of feeders, got 36 now!), and they were going absolutely crazy over all of the food. they came back throughout the morning, and afternoon, and we haven't seen them since!

Any ideas as to what they were doing? they haven't come back yet..