Hello, winter

I guess I will be posting a lot of "white" photos from now on, with winter well-settled. I really hope we get plenty of Chinooks, to give us short breaks from brutally cold weather. Some winters we get them, but not always.

All three photos posted today were taken yesterday, 5 November 2017, when I joined a few birding friends for a walk in Carburn Park. Afternoons are usually not the best time of day to see birds so, as usual, we saw far fewer species than the morning groups - 19 species of bird. Though cold, it was a beautiful afternoon to be out in nature. It was cold enough for there to be a few clusters of small ice pillars along the edge of the Bow River - something I always enjoy seeing. There were so many Canada Geese on the river, quite densely packed. Not sure I've ever seen that many before.

Carburn Park is a very popular place for birding in the city, offering water and woodland species. According to eBird, a total of 211 species have been recorded within the park. In comparison, at Inglewood Bird Sanctuary (the top Hot Spot in the city) 252 species have been recorded. In the Weaselhead Natural Area, 227 species have been seen.

We were mobbed by Black-capped Chickadees who followed us along some of the trails. You can always count on seeing a Chickadee - these friendly little birds are so reliable. They are just 24 hours away from death, and need to collect enough fat in order to survive. Such busy little birds. There were about 10 of them yesterday, hanging out with several Downy Woodpeckers. Over the years, I have taken many photos of them, but I so rarely go for walks any more. From now on, I know it will be much harder to make myself put on all my winter layers, including struggling to get ice grippers on to my winter boots, and leave the comfort of my home. The main roads had been cleared, and were very reasonable to drive on yesterday. I do enjoy going for coffee and a chat after these walks.

"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