As we’ve mentioned in other posts, Negra has been the most hesitant to fully embrace Young’s Hill, but today she was the first one out of the raceway and sat for quite a long time on the log bridge enjoying the breakfast lettuce forage.
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A nest on the hill
When free-living chimpanzees prepare to bed down for the night, most build nests high up in the trees. The reason they do this, as far as we know, is to protect themselves from ground-dwelling predators (though one adventurous researcher discovered some other advantages). Captive chimpanzees, while not at risk of predation, also build nests. The methods for building a nest are culturally learned, but the urge itself is instinctual.
Sometimes I try to imagine what that urge feels like to them. They seem to thoroughly enjoy the process and the ritual of nest-building. Jody, in particular, seems like she is in a state of meditation when she is folding and weaving her blankets. Missy spins 360 degrees as she makes her nest to ensure that each section is symmetrical. Jamie weaves some of her blankets through the caging, as if she is anchoring her nest to the building. The details are different in each case, but each portrays a sense of calmness and comfort throughout the process.
When we sleep we are vulnerable, and nests help chimps feel safe and secure. It’s interesting to note that captive chimpanzees build nests with high sides just like their wild counterparts do to keep from falling out of the tree in the middle of the night. But captive chimps are usually sleeping on the floor or on platforms where there is no risk of falling. And often their nests consist only of sides – there is no bottom. Sometimes the nests look like a doughnut with bare floor in the middle. It’s obvious that the nest is not serving the function of a mattress, to cushion them from the hard ground. Instead, I think it’s fulfilling an instinct that probably goes back millions of years – the urge to be safe and secure, the urge that keeps a sleeping chimpanzee up in the tree where they belong.
This also explains why chimpanzees usually make nests in areas where they feel at ease. You want to close your eyes knowing that nothing strange will happen while you are asleep. At CSNW, the chimps almost always make their night nests on the second story of the playroom or on the benches high up in the front rooms. In the first year that the chimps had access to Young’s Hill, not once did we see someone make a nest outside. But this morning, Jody decided to be the first, and dragged her blankets outside.
This was a big step for Jody, and I think it demonstrates a level of comfort on the hill that we haven’t seen yet. You’ll notice that she made her nest next to the vehicle access gate – the only section of caging on the two-acre enclosure. We often talk about the chimps making gradual transitions, and I think this is a good example. She wants to make a nest outside, but she insists on the security and familiarity of caging as her backdrop.
She didn’t stay in her nest very long, but we are thrilled that she has taken this first step.
Progress on Negra’s Cabin
Just a quick update to let you know that, despite a minor setback from the Taylor Bridge Fire, we are making progress on Negra’s Cabin. The “cabin”, which will actually be a three-sided shelter with a transparent ceiling and walls, is the result of your contributions to our fourth anniversary fundraising drive. The shelter will provide a comfortable space for the chimps on the cold, windy, and wet days of spring and fall. We also hope that it will help chimps like Negra learn to spend more time out on the hill, as some chimps need a little more time to get comfortable being out in wide open spaces.
Our rough vision for the cabin:
And that vision slowly being realized:
We are building this with Negra in mind, but I am starting to think that Jody will be the first to move in and make a nest in a fluffy bed of straw. Hopefully, in a few weeks, we will get to find out.
Whole Lotta Shakin’
Missy and Foxie shaking things and shaking themselves. Just watch:
Try Something New Today
Jamie decided that she would start Year Two on Young’s Hill by trying some new things. She started by testing out a small structure we built this summer.
Then she moved on to the bamboo. I don’t know if it’s a difference in skill or just a difference in weight, but Missy made it much higher before the whole thing toppled over.
Either way, she seemed to be having fun.
Earlier this summer, when Ben and the Boy Scouts were building the new bridge, I put up some log posts around the enclosure. Some of the logs were far too heavy to lift with our tractor, so I cut them up into smaller pieces and made little stumps for the chimps to sit on. Brilliant idea, J.B., I thought to myself, as I patted myself on the back. And then three months went by without the chimps even looking in their direction.
Well, today was the day that stumps became cool. Everybody was doing it. First up was Foxie:
Then Annie:
And then, farther down the hill, Missy and Annie together:
The chimps are funny that way. They require you to be patient.
When we built Young’s Hill, I had dreams of the chimps going out in the morning and not coming back until evening. But they weren’t ready for that. To them, Young’s Hill is an exciting playground, a wide open space that is both exhilarating and frightening. But they can only take so much excitement before they retreat to the greenhouse to relax in the comfort of something more familiar to them.
Over the last year, they’ve pushed their boundaries and conquered some of their fears. Each day they try something new.
This morning, a year and a day after going outside for the first time, the chimps went out onto the hill in a group and many of them didn’t come back until lunch time.
That’s progress.
Wildfire update
Just a quick update to let you know that the sanctuary is not in any danger from the wildfires currently burning across Washington State. However, the fires are creating hazardous air quality in some areas, including around the sanctuary on occasion. During these times, we have been keeping the chimpanzees indoors with the ventilation system recirculating and filtering the indoor air. Fluctuations in local weather patterns mean that the smoke conditions can change by the hour. Thankfully, the chimps are able to go outside most of the time.
Our thoughts are with the people affected by the current wildfires, including the heroic firefighters. For once, we are really looking forward to winter.
Young’s Hill Anniversary Forage
If you were on Facebook this morning, you might have noticed that I posted a link to the video from the chimps’ first day out on Young’s Hill—exactly one year ago today! I can’t believe how quickly this year has gone by—I remember that day like it was yesterday. A lot has happened in the last year and we’ve seen so many changes in the chimps. Burrito hasn’t been the most confident in the open air but he is going farther and farther. Missy is a fearless running machine. Annie has gotten to walk through grass that she hadn’t seen since her infancy in Africa. Jody and Foxie were both hesitant in the beginning but will now spend hours exploring the hill. Jamie never showed any hesitation to exploring every inch of the hill, and protecting it from intruders (deer on the other side of the fence). Negra still doesn’t spend too much extended time out there, but she goes out most days first thing and soaks in some sun before heading back in to her favorite spot in the greenhouse or inside the playroom. Today, she was the first one out when I opened the door! She quickly grabbed some forage and went back in before I started filming, so I don’t have any Negra footage, but I caught shots of all the others enjoying their anniversary forage.
I can’t wait to see what changes and growth this next year will bring. Any ideas?