A fellow Idaho birder reported a Red-necked Grebe at a nearby park pond. Having only seen this bird twice before and never having seen it in Idaho, I had to go a'chasin'! This opportunity provided me my first soul satisfying view of this cool looking grebe. It was cool watching it bathe and preen. It would also dive for extended periods of time. I observed it eating it's own feathers. Reading about this at AllAboutBirds explains why.