One of the interesting thing about grebes is how they care for their young. I believe both varieties, both the clarks and western grebe, transport their offspring on their backs. I was able to get out this year and photograph this phenomenon a couple of times.
This particular set of photographs are of the clarks grebe variety, discerned by how high or low the black patch on the head is in relation to the eye. In short, if the black patch is above the eye it is a clarks grebe and if it dips below the eye it is a western grebe.