What Swallows Feed On

Swallows are now amber listed by the RSPB  numbers are declining for many various reasons changing agriculturing pracitcies in africa and the sahara desert enlarging  along with climate change dry springs dont provide enough soft mud to construct nests and too much heat lead to chicks dehydrating and too longer periods of wet weather lowers the insect life so chicks can starve too death .Swallows feed on the wing so it was quite a shock on inspecting my photos finding on of the birds with what looks like seed in their mouth ,on close observation they seem to be taking seeds into the nest for the young the adult birds can feed their young for up too 400 times a day, so they really have their work cut out Adults returning from migration have been noted recently been returning in quite poor condition and i have witnessed this first hand and takes a while for them to recover from their long migration journey, really dont konw how we can help them but i do know that without the RSPB and BTO these birds would stand no chance at all.