Creatures of the night ?

Since when have Jackdaws become nocturnally active ? Gone are the days when they were all roosting or asleep when venturing outside to check animals on the farm last thing at night. In fact they are all wide awake lining up sat on a gate as if expecting some great event. Like humans they are taking advantage of what was once down time. What they are gaining though im not so sure as all animal feed has been eaten by that hour and scavenging opportunities by then are none existent. Maybe the gatherings are social ? After hours style...lol