My vote would have to go to the European Starling.
Pterosaurus
bird
the flying kind
Actually, recent studies have shown that the chicken is the most common bird in the world.
Most common domestic bird. The red billed quela finch is the most common wild bird.
The most common bird in Connecticut is the sparrow.
Absolutely not, one of the most common birds in the world!
The African queala finch, numbering in the billions.
An Albatross - is a large sea-bird, that spends most of its life flying.
It depends on where you live and possibly on what time of year it is. In the UK the most common birds are Wrens and Chaffinches.
The most common bird in Pennsylvania is the robin.
The ostrich is the heaviest bird in the world.