Which bird makes this sound?

Yellowhammer
Yellowhammer
Barn swallow
Barn swallow
Greenfinch
Greenfinch
Robin
Robin
Blue tit
Blue tit
Greenfinch
Greenfinch
Greenfinch
Greenfinch
Skylark
Skylark
Barn swallow
Barn swallow
Robin
Robin
Greenfinch
Greenfinch
Yellowhammer
Yellowhammer
Skylark
Skylark
Great tit
Great tit
Blue tit
Blue tit
Greenfinch
Greenfinch
Barn swallow
Barn swallow
Skylark
Skylark