 There are several subspecies of the common starling , which vary clinally in size and the colour tone of the adult plumage . The gradual variation over geographic range and extensive intergradation means that acceptance of the various subspecies varies between authorities . 
 <a href='dey_it' title='1'><mark>There</mark></a> are several subspecies of the common starling , which vary clinally in size and the colour tone of the adult plumage . The gradual variation over geographic range and extensive intergradation <a href='uninflect' title='2'><mark>means</mark></a> that acceptance of the various subspecies <a href='uninflect' title='3'><mark>varies</mark></a> between authorities . 
It is several subspecies of da common starling , which vary clinally in size and tdacolour tone of the adult plumage . The gradual variation ova geographic range and extensive intergradation mean dat acceptance of thdaarious subspecies vary between authorities .