morning all i have been mooching around my back garden this morning and for the past few years at this time of the year i have heard a bird that sounds like its laughing its really loud,i have trees all around 2 parks,and a field so i did think maybe it was a woodpecker but dont they make a tapping noise, i cant see it but going by the loudness i would think it was a quite a big bird,because we also have a main road at the side of us and that carries a lot of traffic so to sound that loud over traffic noise i would presume its a big bird,does anyone have any ideas,and i have been told there is a website that you can hear bird calls and identify the birds but i cant find it does anyone know anything about that please.