I visited the Everglades this January, and I got a few photos that I found interesting. I am not a wildlife photographer by any means, but my 105mm macro lens is enough of a telephoto that it lets me reach some closer birds in the park.
The light was harsh because I visited the Everglades in the middle of the afternoon. When that's the case, it's best to expose the photo for highlights and allow shadows to fall deeper. Not only does it look more natural than blown highlights, but it is also easier to correct. Below is a good example:
Alongside exposure, one of the toughest parts about wildlife photography is trying to take a "special" photo. If you're just trying for a close-up portrait of a bird, you risk taking a photo that hundreds of people have already taken. When the light isn't amazing, the best way to take a good photo is to wait for the animal to do something interesting. Below, this heron tries to eat the massive fish it just caught:
The Everglades is a unique place because the wildlife is generally not afraid of humans. This makes it easy to get close even with shorter lenses. I recommend that anyone, even non-wildlife photographers, should visit the Everglades if the opportunity presents itself. None of these photos is my best, but each one is a good recollection of my visit.