Fine set Robin.
I think overall number 1 is the best shot although the pose in number 3 makes for an interesting shot. Nothing wrong with 4 but it doesn't match number 1.
I can't decide on the crop - something going with the detail around the eye area ?
Always great birds to watch.
That first shot Robin is lovely, their appears to be a bit of presence to it the way the bird as been captured
Great detail in them all but 1 and 2 for me, the eyes on the others do look a bit odd
Stan