This Northern Flicker was perched near the top of a Poplar tree in the centre of a grove just west of the Geological Survey, in the University Research Park. I first heard it calling from ~20-30 metres away, while I was near the NW corner of the Core Research Centre parking lot (audio obs. 1) before successfully locating the bird and photographing it (and recording audio obs. 2-6). For the 15 minutes or so that I watched (and listened) to this bird it remained in place and called consistently 2 or 3 times a minute, without any responses that I was able to detect.