Near Brainerd, minn. – I had barely left the road when a whitetail deer dashed with tail raised across a woodland opening a hundred yards or so ahead. It wasn't a surprise the deer was so skittish. The ankle-deep snow was crusty and noisy underfoot. With each meticulous step it sounded as if I was treading on a bed of taco chips.
The jolt of action was the beginning of my plan: a trek afield. I was going to study nature, and with that in mind I had no agenda.
The day last week was balmy (for mid-February). It was 25 degrees. The sky was gray and a moderate wind blew from the northeast.
I carried a camera, but mounted on it was only a small zoom lens in case it found something noteworthy.
I love rambling afield in winter. Snow is a tattletale. No ground-dwelling creature can pass without leaving tracks in the frigid powder. Unfortunately, on this day, the snow was far from powdery. It had been a few weeks since the last snowfall, and a couple of sunny 40-degree days had transformed the snow's fluffy surface into a layer of crusty ice. Conditions were poor for observing tracks.
Not far from the road was a thick stand of white spruce trees. I headed in that direction, knowing deer and other animals likely used the trees as a wind break. There I found numerous deer beds. The beds were on the downwind side of the trees, and also on the south-facing side. So, on those bitter cold days — of which we have had plenty — the deer were able to bed in relative comfort.
From there I wandered into a lowland meadow where the primary plant was goldenrod. There was nary a leaf left on the stems — they had been eaten by deer.
Also, many of the goldenrod plants contained galls. Galls are spherical growths slightly smaller than a pingpong ball and are attached to the stem of many of the plants. The biology of the galls is too lengthy to discuss here, but each gall contains a small maggot-like larva of the goldenrod gall fly. Woodpeckers, especially downy woodpeckers, peck a hole into the gall until they find the grub.