Recently when I lucked out by capturing four different grebe species in one day at Shoreline Lake in Mountain View, I witnessed something new for me – two eared grebes who had paired up for season were not only showcasing their courtship behavior, but were also mating. I was surprised to see this because usually the grebes head north for the summer before mating, and as a result I had never seen this behavior before.
Their courtship seemed to have several stages of intimacy. First, they swam close to each other across the lake as seen above. Suddenly, they would run side by side across the surface of the water (essentially flying very low over the water) and quickly make it to shore, only to turn around and swim slowly back to their starting location.
Part of the eared grebes courtship display is to fly low across the surface of the water together. Once they land nearby, they swim back to their starting location, and proceed to mimic each other. They repeat this cycle of mimicking and flying together until they (usually) mate.
Once they had performed this flight several times, they stayed out toward the middle of the water and proceeded to mimic each other, a behavior seen frequently in other grebe courtship displays.
A mating pair of eared grebes court one another by mimicking one another’s movements. Here the rise out of the water belly to belly and synchronize their head movements.
As I said before, I was surprised to see actual mating behavior. I have not heard of eared grebes successfully nesting in the area, so I assume this couple soon headed north for a more traditional breeding season together.
Lately I’ve been going through my backlog of unprocessed photos, and I happened upon a collection I took one day at Shoreline Lake in Mountain View. A theme of “grebes” jumped out at me right away, as I had captured on camera four of the five common grebe species in the SF Bay Area, within just a few hundred yards of each other, and all in their breeding plumage.
First up were the beautiful eared grebe (above) and the horned grebe (below). At the peak of their breeding plumage, they are quite easy to differentiate, but in their winter colors, it takes a sharp eye to tell the species apart.
A horned grebe dries itself off after bathing by rising out of the water and shaking vigorously from side to side.
As usual, the eared grebes greatly outnumbered the horned grebes, but both species were mingling and fishing together quite happily.
Closer to shore in a sheltered corner of the lake were several pied-billed grebes. While the eared and horned grebes usually migrate north to breed and raise young, many pied-billed grebes raise their chicks in the Bay Area. When they enter their breeding colors, they gain a thick black band around their bill. In the winter, the bill is a solid bone white color.
A pied-billed grebe in breeding plumage swims through calm water
Finally, a clark’s grebe made a brief appearance in the lake, most of which seemed to be under water. Clark’s grebes look similar to the region’s last common grebe, the western grebe. Clark’s grebes also migrate north to mate, however a persistent couple has been trying to raise young over the last few years in another location within Shoreline Park. So far, they have been unsuccessful, with either no chick hatching at all, or the newly hatched young dying within days. A successful nesting would be of great interest to the local birding community, as many have kept watch over this pair’s nest over the last couple of years.
A clark’s grebe flaps it wings to reshuffle its feathers as part of its preening routine
I was happy at the variety of grebes that day, and that I caught some of these species at just the right time: after they had molted into breeding colors but before the left for their journey north.
Recently a friend and I headed up to Yosemite for an early season 4-day backpacking trip. It was a good excuse to loosen up the joints for the summer and get out in the Sierra backcountry. We chose the area around Lake Vernon as sort of a staging point from which to launch an off-trail loop into some of the less explored drainages. Supposedly, this area was relatively snow-free compared to other areas at similar elevation (7,000 – 9,000 ft).
We decided to hike up out of Hetch Hetchy due to the easy access. Because permits are issued at the entrance gate, you can get a wilderness permit the night before as late as 9pm. That is a huge help for those driving up after work from the Bay Area. We got there Friday night, got our permit, and settled in at the backpacker’s campground overlooking O’Shaughnessy Dam. We were up at 5:30 the next morning, and hit the trail by 7am. We had a very long day of hiking and lots of climbing, so we needed the early start.
The uneventful hike along the edge of Hetch Hetchy reservoir was punctuated only by the raging waters of Wapama Falls (see photo above). A couple of weeks earlier, the flow from the fast snow melt was so great that park rangers closed the bridges across the falls and shuttled people by boat around the dangerous spots. I was happy that we timed it such that it was a easy walk through the water spray.
We reached Rancheria Falls by 9:30 and began our long climb up out of the lower elevations of Hetch Hetchy. After a long day of absolutely nowhere to camp (not that we were ready to stop anyway), we reached our destination of Lake Vernon. It ended up being a 16 mile day with 4800 ft of elevation gain. Not surprisingly, we were pretty worn out for a first day of the season! With little time to scout before it was fully dark, I set my alarm to wake up before sunrise and do some quick scouting for shots along the shoreline.
Twisted trunks of trees are reflecting in Lake Vernon are silhouetted against the pre-dawn light, Yosemite National Park
One of the features of the lake that struck me was that all along the shoreline, trees were growing directly out of the water. I’m guessing that the Lake was at peak capacity and was flooding the base of the trees, but it definitely made for an interesting silhouette abstract. The sun soon rose into a cloudless sky, and we were quickly packed up and ready to hit the trail once again.
Above Lake Vernon, we hit quite a few places where the trail was under one to two feet of water. Large patches of snow began appearing amongst the trees. As we climbed higher, we began to worry about our original plan of climbing off trail to 9,000 feet and from there, exploring some of the ridge lines. As we got closer to our destination, we could see the ridges were still full of snow. With no choice but to change our plans, we camped up above Lake Wilma on some flat granite slabs next to a quiet cascade.
Water cascades down flat, open granite above Wilma Lake, Yosemite National Park
The next morning we decided that the best course of action was to more or less retrace our steps back to Lake Vernon, as we were pretty worn out from trudging through flooded meadows and snow drifts. At least this day would be mostly downhill (only 1500 ft of elevation gain), as the previous two days combined were close to 8,000 ft of gain. Walking downhill most of the day allowed us to enjoy the beauty of Falls Creek, which the trail followed most of the day.
We set up camp in the same spot along Lake Vernon that we had used two nights earlier. A bonus was getting to use the rest of the firewood we had already gathered! The next morning was quiet and beautiful. The surface of the lake had settled into a mirror, reflecting everything along the shore with perfection.
A large pine grows out of a pile of granite boulders along the shore of Lake Vernon, Yosemite National Park
After enjoying a leisurely morning at the lake, we didn’t hit the trail until 9:30, our latest start yet. That was okay, because we had only an 11 mile hike out to the car, downhill almost the entire way. We left the lake opposite our entry point, creating a loop from Hetch Hetchy to Lake Vernon. We made quick time, blasting out of there in 4 1/2 hours. The most scenic part of the last day was descending the old construction road from Beehive Meadows. This was a road built to service the building of the dam, which has been converted into a hiking trail. A few chunks of asphalt were still seen here and there, but for the most part, mother nature had wiped out this road long ago with severe freeze/thaw cycles and many rock slides. Although the exposed decent was hot and hard on the joints, it did offer some stunning views of the reservoir.
Lupine blooms adorn the hillsides surrounding the Hetch Hetchy Reservoir, Yosemite National Park
As I was reaching the waterline, I couldn’t help but try to visualize what this valley would look like in its original condition, before the dam was built. I couldn’t help but feel a touch of remorse as I imagined John Muir shaking his head in disgust.
We reached the car by 2pm and began the drive home. It was a great first trip of the season, clocking in at 3 1/2 days of hiking, just over 50 miles covered, and over 10,000 ft of elevation gained. If this was a warmup trip, what’s the next trip going to be like?
There is a large pond near my house that attracts American White Pelicans at various times of year, sometimes in large numbers. I’ve seen as many as 30 pelicans congregated along the shore, preening and snoozing. I came across this solitary pelican late last year. As it was getting close to winter, this pelican didn’t have the typical “horn” that grows from the top of the bill during breeding season.
An american white pelican spreads its wings and shuffles along an island in the middle of a lake
These photos were shot from the shore, with the setting sun behind me. The pelican had set up shop on a small island in the middle of the pond. One of the difficulties I encountered was separating the pelican from all the activity around it. Also on this island were many gulls (one can be seen in each photo), double-crested cormorants, black-necked stilts, and several sandpiper species. Needless to say, it was a pretty crowded place. I managed to get a few portraits that I liked, but frustratingly, some of the pelican’s best poses occurred while an ignorant interloper plodded by in the foreground. Such is nature photography. If I wanted complete control, I’d take up studio portrait photography!
