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Chickadee is a very tiny bird. Adult black-capped chickadees are just 4 to 6 inches long with a 6 to 8 inch wingspan. This very active songbird, which weighs about 12 grams and fits inside a typical human hand. Black-capped chickadees are named for the “cap” of black feathers that covers the top of the head and extends just below the eyes. Their cheeks and chest are white, their wings gray edged in white, and their sides are beige. Chickadee brain plays an important role in finding food . It has a map in its brain pinpointing all the locations that food is hidden in an area that covers many square miles

During fall when chickadee is gathering and hiding food for the winter, a map of hiding places are constructed in its brain. Its hippocampus, the part of the brain responsible for spatial organization and memory , expands in volume by approximately 30 percent , adding new nerve cells to map the hiding places. In the winter , each time seeds are retrieved from a hiding place, the memory in the brain for that location is erased. As winter progress and more and more hidden seeds are located, more and more memory is erased and brain will begin to shrink. By summer its brain will come to its normal size.

CH3 5x4advchick24feb19d (57K) 5x4advchick24feb19i (53K) CH4

CH5 5x4advchick24feb19j (50K) 5x4bearbath1sep19b (109K) CH6

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CH15 5x4advchick24feb19k (63K) 5x4advchick24feb19e (68K) CH16

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columbiawrighitswille21arp20b (96K)

stmaryschurch21arp20b (105K)

limesprinfarm14may20b (105K)

lancasterpa23arp20b (119K)

fallingwater14may20b (151K)