Could this be why swallows are called swallows?

Couldn't quite believe it. There were four young swallows perched on the studio roof. And there were two parents swooping in and out feeding them. In September!

So that was to be the blip. Except I was never sure which baby would get fed. Most of the time the focus was on the unfed. Sometimes the parental head looked as if it was being swallowed up.

Fascinating to watch them.