Most common domestic bird. The red billed quela finch is the most common wild bird.
chicken
Actually, recent studies have shown that the chicken is the most common bird in the world.
The 2nd largest bird on earth is the harpy eagle .
Chicken
All of them. I have never heard of a poisonous bird
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 Connecticut is the sparrow.
The most common bird on Earth is the domestic chicken (Gallus gallus domesticus), due to its widespread presence in farms and backyards worldwide.
It can be, in context. If referring to an individual bird, then it is a regular common noun. If it is talking about chicken meat, then this is an uncountable noun, there is no 'a chicken' when talking about chicken meat.
I have a newsflash for you... A chicken is a bird.
parrot
That would be chicken! The chicken is also the most abundant bird in the world due to the amount of people that eat them.