Would the organism generalize the pecking behavior in response to a purple key?
In that research, pigeons pecked response keys in order to obtain food.
Drinking milk from a bottle where the top had been pecked by a bird was not statistically significant but there were very few subjects exposed.
However, they continue to discriminate, as shown by pecking at control beads of other colours.
The other birds get the water, and ever since then the woodpecker has been pecking at things.
Also, like battery chickens they also have their beaks removed to prevent them bullying and pecking other chickens.
We suggest that this mechanism may be very important in the ontogeny of the adult pecking response in doves.
Chickens are pecked by their social superiors in order to maintain a rigid status quo within the flock.
