Meantime, we are on vacation in Maine at a pond with at least six loons (including one juvenile) but few other birds. Perhaps because it has been raining for two days? Once the rain stopped, though, a family group of Blackburnians began showing up regularly in the morning and early evening; very hard to see, but I did get one good look at an adult female feeding a juvenile.
Cedar Waxwings seem to love this area. Here's one shot from a nearby marsh.
|Cedar Waxwings, Raymond Pond marsh, Cumberland County, Maine (full frame, click to enlarge)|