My postulate was incorrect; the Anunnaki were/are not colour-blind.

I have postulated that the Anunnaki were colour-blind. I was wrong. The postulate resulted from a lack of awareness on my part, of Thailand's flora and fauna. Now that I am aware, I need to explain how the error occurred.

If you recall, the matter concerned the totem of the human workgroup "BaHumbe", the rock hewers, who incidentally, should correctly be called "Ba-U-mBela". Rock hewing pivots around the ancient word stem "bel...", which evidently meant "to hew". For example, the name given to the Ethiopian rock-hewn churches, LaliBEla unpacks to "La li bela", meaning "compound/liquid hewing". The English word "bell" comes from the sound produced by rock hewer hammering away at their tools. The names "Mbele, Mbere, Katumbela [ka-ti-umbela]" are all associated with the rock hewers. Even the "umbillical [umBELlical] chord" gets its name from the chords that attached the hewers of Lalibela to the top of the structures as they hewed their way down to the floor level. 

At Mapungubwe the BaHumbela hewed the "toilets" at the top of the hill. It was back-breaking work. They had to be well fed always, and so they could not afford NOT to eat any animal of any significant meat value. Their totem had to be a mere formality, and so they were assigned a small bird, the chiBelu as their totem. We in southern Africa, know chiBelu to be the African hoopoe bird. In my analysis of the totems of different tribes, and more specifically the totem of BaHumbela, I was surprised by the incongruity bertween the African hoopoe bird and the name "chiBelu". The name "chiBelu" suggests that the bird is a hewer of some sort, such as a wood pecker [khoodza-ntanda in Kalanga language], rather than the African hoopoe, which does not hew. The wood pecker physically differs from the African hoopoe in one significant respect - colour. The wood pecker is dark grey, while the African hoopoe is tri-colour: red, black and white. I therefore concluded (incorrectly) that the gods could not tell the colour difference between the two birds; i.e. the gods were colour-blind.

Watching TV I have since observed  a Thailand wood pecker that is almost identical in colour to the African hoopoe. What this suggests is that the Thailand  woodpecker is the genuine "chiBelu", because it hews! So when the gods assigned the chibelu as the totem of the BaHumbela, they meant the Thailand woodpecker. When the BaHumbela asked what the hell that was, they were simply shown the African hoopoes, because that was the local bird that most closely resembles the Thailand woodpecker in colour. So the gods couldn't have been colour blind if they correctly associated the African hoopoe with the Thailand woodpecker, because the two birds are identical in colour, although the former is not a hewer, while the latter is a hewer.