The only red flag I can see in the picture is the bird has a minor case of wet feather; in the picture, the feathers have a soaked look which is suggestive that the bird isn't getting in water enough, such a case, will allow for debris accumulation among the feathers, and since oil distribution...
The spare feather development seen under the wings in the very latter picture can be considered normal for most birds. The second picture, I would not consider abnormal, the birds appear to be in a wet state when the picture was taken which would add to the "sparse" look. The first picture could...