rooster
It is a chicken plus two. A avian creature and a number added together will remain just that.
Chicken 65 is called so because of the number of ingredient that is used to prepare it.
Mixed number
The group is called a "herd".
Called a flock.
A Pod.
Gathering
A herd
Chicken is meat?!?!?!
In the film, Chicken Run, the chicken that knits is called Babs.
This would be called a "factor". A number may be made by multiplying two or more other numbers together. The numbers that are multiplied together are called factors of the final number.
Turducken. The cat food brand Merrick has a canned food called "Turducken." Indeed, it is turkey, chicken, and duck mixed together.