Gosh, I hope not. Certainly not the intention, but the feather detail just isn't there (compare Claudio's Black Capped Bulbul), and I was trying to work out why.
Shutter speed of 1/400 should have compensated for any feather movement, though I think I would have gone higher and upped the ISO to compensate.
Having had a better chance to look at the bird, I'm pretty sure it is a juvenile / sub-adult, which would give it downier feathers.
Claudio - you are doing fine!!!!!! You have said that you have selected AV mode. Did you try varying the aperture to see what effect it has? Some of the members here will say go to manual, I prefer to change one thing at a time. No right answer, really.
Incidentally, your duiker pictures, especially the second one, in your other post, are absolute crackers! MUCH harder to get than a lion
Dave