January in Buffalo?

At about 2 p.m., while Val hooked up our new Vonage connection and worked on some photos for an upcoming show (more information soon), I took our dog, Walker Evans, to the section of Delaware Park near the Buffalo Zoo. The temperature was about 40 degrees, the wind was calm, the sun was out and there were no piles of snow in sight.
I was a bit surprised that there weren't more people at the park than the decent amount I saw, but it was no surprise that so many of us had our dogs along with us. Walker had a great time meeting people and sniffing and occasionally barking at other dogs, but the most fun occurred when we turned the corner from the road we parked on and approached the bison area. Two women were intently looking at something, one leaning against the fence, the other half-kneeling, half-leaning over near the corner. As we approached, I noticed Walker sniff the air, stiffen his back and walk faster. As we got to the fence, I saw why; right in the corner, behind the double fence, was an adult bison playing with a small Christmas/pine tree, and then using it a a scratching post. After a minute of intense staring, Walker suddenly turned and walked away, sniffing at a tree. On the way back, he again all but ignored the bison but took a sudden interest in the small chicken coop next to the bisons.