Wildlife Spotting

Today I found a line of ants moving from one nest to another. It was not a hunting expedition, because one, they didn't atack insects they found in their way, and second, some ants carried eggs (or pupae) under theyr bellies. First spot happened around 7 AM, and, by noon, they still were moving. I think that some tens of thousands ants went by, even crossing a small creek (through some fallen branches).