Sunday June 2, 2013:  19 new of 9 species, 4 recaps.  Early morning downpours kept the entire staff in bed until about hour 1.5, when a few of us slowly rolled in and cautiously opened a handful of nets.  As the morning progressed and the radar cleared, we were able to open all the nets except nets 1 and 5, which were standing in the middle of flowing water.  Cuckoos continue to call, but they still elude us (as do the woodcock that we flush every morning).  There was a lot of bird song and movement in the bushes, but the local birds seem to have learned where the nets are and hence elude us as well.  We are getting a few more blackpolls trickling through, and the flycatchers continue as well.  Today, we took the time to measure three different Traill’s Flycatchers, and then to apply a complex formula to determine if they are Willow or Alder.  All three came out as Willow, which isn’t surprising.  They are pictured below from the back, and they show subtle coloration differences.

Three probable Willow Flycatchers, showing a gradation of color from lighter to darker.

Three probable Willow Flycatchers, showing a gradation of color from lighter to darker.