Swallows should peak here in the next 3 days. This year some of the Swallows had a bad start around here with some deserting nest completely with behaviour of initially throwing eggs out of nest and then on the next clutch throwing out very early young and then deserting the nest and nest area completely. I can only presume this behaviour lends itself to a shortage of food. This non-descript Summer has probably been devastating to many birds if we were to know the full consequences. Swifts around here also faired badly this year...