Western Grebe

The Western Grebe is the largest North American grebe, but is only noticeably different from its cousin, the Clark's Grebe, in a slightly greener bill and the extension of its black cap down over the eye and up to the cere, and the two can often be seen intermingling.

Although lots of range maps don't show them straying too far from the coastal states, there's a regular supply of Western and Clark's Grebes in the Phoenix Area, and they're regulars at the Tempe Town Lake.