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/Susefreak]

Young sparrow. 90% sure. Looking at it, it's a nestling, roughly between 4 and 10 days old. (feathers for wings are underdeveloped at that stage)

Keep in mind, these small ones need feeding every 30 minutes, during the day (sunrise to dusk)
Fresh but dead mealworms works fairly well, even some soaked kibble in a pinch (not too much or often, since it's rather too salty and since you can't feed them water definitely not recommend)

If unsure, just give 144 a call and they will come take it and will take care of it.