November Walking Tour – The “Cocoon” Habitat Structure

November 6, 2025 Kevin Williams , Manager of Horticulture

This is less of a walking tour and more of a destination exploration. The striking installation on the eastern end of the boardwalk in Denver Botanic Gardens' Birds and Bees Walk was designed to showcase the intricate relationships between natural materials and wildlife. This sculptural and organic installation combines artistry with ecological functionality, emphasizing the essential role of natural elements in fostering biodiversity. Let’s dive into the intricacies together:

1. Dead Wood and Bark

The primary layer is built from reclaimed dead wood and large expanses of bark, reflecting the vital role decaying trees play in ecosystems. These natural materials create a lattice of crevices and cavities that mimic the shelter provided by tree trunks. Birds, insects and other small animals find refuge here.

2. Insect Hotels

Nestled within are clusters of small sticks and hollow plant stems. These provide solitary bees, such as mason and leafcutter bees, with safe nesting sites. The carefully arranged hotels demonstrate how simple interventions can support pollinators, whose activities are crucial for plant reproduction and ecosystem health.

3. Material Pockets

This installation was designed as an extensive material library; a place where any creature can take or borrow what it might need. Often overlooked as mere waste or mulch, these materials are carefully arranged in woolen pockets that hang throughout the structure, holding leaves, pine needles, duff and fibers for nest-building and shelter.

4. The Tapestry of Fibers

Woven into the design are strands of natural fibers like grass, cotton, wool, silk and flax. These fibers provide birds with vital nesting materials and insects with safe hiding spots. Can you spot fibers from this structure repurposed in nearby trees or bushes to form intricate nests? 

5. Bird Houses

Each birdhouse varies in size and shape, accommodating different species like chickadees, wrens or bluebirds, with tailored entryways and internal dimensions. Beyond their practical function, these havens demonstrate the importance of intentional design in supporting wildlife through offering safe spaces for birds to nest, rest and raise their young.

More than an installation, this is a living example of how human creativity and natural processes can merge to foster biodiversity. How can you create more space for other creatures in your own life?

To explore the structures of the Birds and Bees Walk further, read Bring Out Your Dead! Complex Spaces in the Habitat Gardens

 

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