Jill spotted this nest by the trail in Great Sand Dunes National Park (also a new park). We could hear a second bird just above singing and the app, Merlin, identified it as a Plumbeous Vireo, a bird I could not recalling ever even reading or hearing about. Then we spotted the bird in the nest. It matched the description of the vireo but even more the nest was exactly as described. A great treat to add to the North American life list.
