It was fascinating to watch this tiny Black-capped Chickadee excavate the meat in a peanut half with such precision that it left a thin shell that kept the shape intact. After it hollowed out the peanut, the Chickadee flew off with it perhaps to cache what was left. A recent article I read about the superb intelligence of chickadees pointed out that their ability to learn is key to their survival in harsh winter environments. Their intelligence has been observed to be close to that of corvids (crows, jays, ravens). And they remember where they cached their food, a significant factor in their survival in a harsh winter environment like Sax-Zim Bog.