This was not a species that I has expected to see in the nets. The same crew had gotten one on Mt. Mansfield a couple of weeks ago, but it's not a common bird.
Only heard vocalizing.
Grey-headed Woodpecker (Picus canus) seems less likely based on general distribution, and also based on local observations:
Nine families of largely arboreal birds make up the order Piciformes, the best-known of them being the Picidae, which includes the woodpeckers and close relatives. The Piciformes contain about 67 living genera with a little over 400 species, of which the Picidae (woodpeckers and relatives) make up about half.