No no.

In McD, they do sell chicken burger (at lower price) and McChicken with higher price.

The difference, McChicken has sesame bun, while chicken burger do not have sesame bun.

but why they didnt advertise? next time if i call for chicken burger they will give me the lower priced one?
*cheapskate mode on*

chicken burger is made out of left over parts i.e. neck, wings etc which meat separated from the bones then grounded into patty form and serve to u, whilst mc chicken is made from the main parts i.e. breasts, thigh.

thats the price difference, both same taste to me imo, still gooding.

and yes i puked a little when i heard of this

This is the McD chicken burger