Hides are indeed excellent but no one has remarked on "bags hides" which are a middle ground solution that I have had many successes with.
A bag hide is not a ridged hide nor clothing but is more flexible than the former and better at hiding you and your shape than the later.
It is a heavy camo material that is thrown over you and camera. Correct use is important and it is best to set up and sit still in it. Any movement will show up and so it could scare animals/birds away. However if you make yourself comfortable and sit still you can get very close to wildlife. I have had
Fallow Deer approach sooo close that they came within my minimum focus (1.4m)! If things just aren't happening then you can easily move to a new location. You can even creep closer to your subject if you do it verrrrry slowly.
That said I have tried stalking with it and it is all about the approach not the camo and so wearing woodland colours is just as effective.
I bought mine from
Wildlife Watching Supplies - Wildlife photography, Nature photography, Photo blinds
Jason