North American muskrat

The northern Illinois Ice Age ended 1-1.5 weeks ago, and it's the warmest day this year at 75 F.  Ice is 50% melted off the subdivision ponds and creatures are out and about.  Had several other good blip candidates today, but the muskrat won because I was able to get close at 10 feet away.  The muskrat was working his way along the pond bank, so I ran ahead and waited for him to arrive.  The muskrat gave 7 seconds in which to fire off a few photos before it dove underwater.  The photo does not show the long dark tail which is unique in that it's slightly flattened vertically to assist in swimming.