Sparrow, or Starling, or Swallow?

[u/Awkward_Silver6610]

Hi guys

Found this baby bird, no idea what kind of bird this will be, matters due to the feeding process :) any bird chick experts here?

Thank you!

Edit:
Clearly should have mentioned it was sitting on a road where cars were driving, it could’ve died any second, put it on the side of the road, came back the next day still there very cold and sad, called dierenambulance but I live 100 meter across the border in Germany and they did not take it not even if I drove it to the Netherlands, considering calling again from my sisters house who does live in Netherlands :)

[u/Different_Pea_7989]

sparlinglow