The ever-present Black-capped Chickadee

This was more or less the only photo I ended up with after a long walk in South Glenmore Park yesterday afternoon, 18 February 2018. It was so cold and a slight wind made the windchill plunge. However, a handful of us braved the weather and managed to find at least several species of bird. This little Black-capped Chickadee was one of several, feeding on Sunflower seeds. These little Chickadees are just 24 hours away from death, and need to collect enough fat in order to survive. Such busy little birds.

This is not my favourite walk, partly because it is so long, but I needed the exercise and I wanted to spend time with my friends. Some of us went for coffee afterwards - and a bowl of special Mac & Cheese was especially welcome after being out in the cold for so long.

"The Black-capped Chickadee is notable for its capacity to lower its body temperature during cold winter nights, its good spatial memory to relocate the caches where it stores food, and its boldness near humans (they can feed from the hand)." From Wikipedia.

en.wikipedia.org/wiki/Black-capped_Chickadee

www.allaboutbirds.org/guide/black-capped_chickadee/id

"The chickadee's unerring spatial memory is remarkable enough, says Colin Saldanha, assistant professor of biological sciences at Lehigh University and an anatomist who has studied songbirds for six years.

But it is what happens inside the tiny songbird's brain that Saldanha finds amazing. In the fall, as the chickadee is gathering and storing seeds, Saldanha says, its hippocampus, the part of the brain responsible for spatial organization and memory in many vertebrates, expands in volume by approximately 30 percent by adding new nerve cells. In songbirds, the hippocampus is located on the dorsal surface of the forebrain right beneath the skull. In mammals, the hippocampus is located beneath the cortex.

In the spring, when its feats of memory are needed less, the chickadee's hippocampus shrinks back to its normal size, Saldanha says." From article on ScienceDaily.

www.sciencedaily.com/releases/2003/09/030912072156.htm