memes

Before the first verified individual migrating birds in the 1800s (via finding storks with spears still in them after migrating to and from Africa) people had a lot of weird ideas about why birds weren’t there in the winter. “They fly so far it’s literally off any map you’ve seen” probably made as much sense to the average person as them flying to the moon, or burrowing into the mud at the bottom of ponds to hibernate.

The latter probably made the most sense to many people who lived rurally, because bank swallows (sand martins elsewhere) actually do nest in tunnels they’ve dug into the sand near bodies of water. To anyone who went without seeing one all winter and then suddenly saw one leaving a burrow in the spring, ‘it slept there all winter’ is a lot less of a leap than ‘it flew thousands of miles round trip and got back when you weren’t looking.’