Not really a legit listing of the best shotguns for bird hunting without including a Benelli M2, Benelli SBE3, Benelli Ethos Cordoba, and by not including a Beretta A300 or A400 models. At least one Benelli and Beretta, and probably more, should have made the list.
You forgot to mention the Remington 870, an excellent bird gun.
Not really a legit listing of the best shotguns for bird hunting without including a Benelli M2, Benelli SBE3, Benelli Ethos Cordoba, and by not including a Beretta A300 or A400 models. At least one Benelli and Beretta, and probably more, should have made the list.