I really wanted to get into bird photography for a while now, but the topic of cameras can be quite intimidating. Im looking for a decent enough camera, prefferably on the cheaper side, and if its possible, for it to not be extremly big and heavy, as it would be tought to travel with such a piece of equipment. I have seen Canon Powershot SX70 HS/SX60/SX50 and Nikon coolpix 1000/950/900 be recomended for bird photography, and they seem like a pretty good match for what id want. What are the differences between the older and the newer versions of these cameras? Would they even be good for me? Or maybe are there some better affordable options out there?