The first thing to pop into my mind is that the bird on the left could be a grebe and the one on the right a cormorant. I may be wrong, so would someone with a bird identification book validate or invalidate this? Thanks.
The bird on the left is some kind of coot, and Jerry is right about the one on the right. Definitely a cormorant... they are such funny birds. They don't produce as much oil as most water birds, so their feathers can actually get so waterlogged they'll drown! In the morning they can often be found standing in those tall cypress trees with their wings spread out, drying off the morning dew- makes them look rather silly :)
Thank you, Cast.... You are so right about the coot; I could't place it without my missing bird book.
bird on the right is a Neotropic Cormorant