I am not a technical expert - but a few thoughts that might be helpful. No doubt someone will chip in if I am wrong.
1. I think you have a good eye for composing your photographs.
2. I think (not 100% sure) that Program mode is not clever enough to choose an aperture like f14 because of breadth of perch etc.
3. I do not think holding the camera still is the major problem - you have some here that are taken at fairly slow shutter speeds.
4. One of the issues with high ISO is the way that the camera processes the photo when shooting JPEG. It will process it to reduce the noise - but one of the side effects of that can be that it also reduces some of the detail - so in some cases this could lead to some loss of sharpness.
5. If you use multi-focus points, your camera will choose which point to use. Often it will choose the nearest object that a point covers. Although cameras are clever, they do not know what you want to focus on. In the picture of the macaw, if you look at the leaves just in front of the bird, these are sharper than the bird - suggesting this is where the camera focussed. I almost always use a single focus point (and usually the centre one thogh sometimes I choose a different on if I have more time). I only use multi -points if I try birds in flight when there are no other things that the camera could focus on.
6. I think the Programme mode chooses a very strange set of values. I think you will remain frustrated if you continue to use it. Although I have never used it, I thought that you could change the settings that the camera chooses - but I suspect you are using it like the fully automatic option (I may be wrong in that assumption). I would recommend that you try the Aperture Priority mode and experiment with it at home. I think you would soon get used to it and it would give you more control. If you want to continue with Programme, experiment with changing the settings so they make more sense.
7. I think the photo of the cows is a very nice picture. I don't think the noise spoils it. But the most important judge of that is you (and your wife). The term "acceptable" really asks - who is the primary audience. Is it for you to look at and enjoy at home? To post on here? (where I enjoy it) To make a giant print for an exhibition?
8. All of us delete a very large number of photos, and also have many more that we do not post!
I think it is admirable that you want to improve, but remember to enjoy the sightings and the memories as well.
Edited by TonyQ, 01 July 2016 - 05:01 PM.