Ben I think most of us have been there. We save record shots! However record shots of this quality are simply not suitable for critique they are what they are -simply record shots. Bird photography is not about excuses. It requires knowledge of both the subject and the camera, patience, experiance and a modicum of luck.
One of the good things about digital is that it costs little or nothing to press the shutter and this allows people to really push the boundaries. It does not mean that every shot is suitable for publication. It is also a bad thing and anybody who has done medium format film photography will tell you that it cost 50 pence every time the shutter was pressed so you soon learned that the subject,lighting and camera had to be right or the result was not useable.
Learn your fieldcraft on larger and easier subjects than a wagtail- try the local park for ducks and geese. Join a camera club where they will take thro both the camera and post processing techniques. But most of all don't expect to run before you can walk you are, after all, trying to master several disciplines at once.
Good luck
Regen