March of the... geese

Every day a huge flock of geese (is this the correct collective?) come into the marina for the night from the river. Not like 20 or 30, it’s hundreds. Its at different times, sometimes lunchtime, sometimes at 10pm and I am yet to capture it on video. I will keep observing this daily routine, and I haven’t figured out when they leave in the morning, but will report back any findings :)