The official start to fall migration began this morning with a beautiful ASY male Black-and-White Warbler. He had no visible fat and I found him on a south face to the building but approaching mid-August it’s difficult to imagine him as a local disperser rather than a fall migrant. Here’s the odd place he showed up:
I noticed him from some distance away. I was thinking this morning how even an errant leaf catches my eye. My detection rate is lower than 100%, but not by much.
Birders not used to seeing Black-and-Whites in the fall can be distracted by the white throats of adult males and misidentify a bird like this as female. The one character that only the adult males possess in all plumages is, however, evident on this guy: black auriculars (“cheek patch”).