This Northern Waterthrush was the last bird we caught in the net-good looking isn't it?
The second last bird that we caught was the one that caused us the most trouble it was a Flycatcher......an Empidonax but what kind? It wouldn't honour us with a song while in hand. And it had a very, very green back-see
But after much measuring of the primaries, and using formulas to figure it out P10-P6, etc...., it was decided it was a Willow Flycatcher.
A birder came along to watch and we held it up and said what is it? And he laughed and said a flycatcher? Make it sing!