array9

If you attack from above you probably should have a pale ( sky coloured) belly as camophlage.

If you attack from below or low level, then you should be ground coloured.

So you would expect versatile preditors to have a boundary between a earth top surface and a sky belly.

Birds that only do one thing perhaps can be just one or other shade.

I think that great skuas must be low level attackers, Terns entirely high level attackers, and so on.

Or maybe bonzies are just thugs, and scare the hell out of their prey.

food for thought

cheers

martinW