Swift returning to its nest

Swift with food ball2

At the beginning of May, our sky becomes alive again with the masterful flight of the Swift. Their dizzying, screaming chasing parties circle at incredible speed around their breeding sites under gaps in roofs and eaves. A couple of days ago, I saw my first Swifts of the year, still migrating, very high in the sky. I based this drawing on a photo by David Moreton. It shows an adult swift with a food ball filling its throat, returning to its nest to feed its chicks.