Land bird migration, Nov 4th

Although more at work than birding, signs of passerine migration were obvious: flocks of American Robins at mid-altitude over Ewing after sunrise, more on the ground in Princeton, then more flocks headed south west over Princeton U. campus around 10:45, along with an icterid flock and a Cedar Waxwing flock. Two Golden-crowned Kinglets were feeding in the trees outside the lab.