I encountered a few different colours of rock pigeon. There are four different colour variations, like the usual pale grey wing with green and pink neck, the grey all over, the white all over and the one that is black all over.
The usual one is common, but the one that is grey all over is smaller than the usual one.
The on that is black all over is quite big in size compared to the normal one.
The usual rock pigeon
The one that is grey all over
The one that is white all over
The one that is black all over
Are they of different subspecies, or different morphs, or gender, or different age, etc, but I don’t know. Anyone who knows please comment.