Tips of American Elm (Ulmus Americana) branches dropping on the ground alerted me to the fact that something was going on in the crown of the elm tree above me. Sure enough, a Gray Squirrel was busy dropping branch tips after harvesting the elm seeds on them. Because their seeds develop long before most seeds are available, elm seeds are sought after by numerous song birds, game birds and squirrels. This was verified by the presence of the Gray Squirrel, as well as a Rose-breasted Grosbeak and an Indigo Bunting (see photo), both of which took intermittent breaks to sing, but spent most of their time consuming elm seeds.
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