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These army-green, weatherproof devices are about the size of a Kleenex box, and typically strapped to a tree while they record virtually anything within earshot.

The agency decided against using animal fur because “we wanted to make sure that it remained completely weatherproof,” he said.

The cubes are made of weatherproof steel, weighing a collective 156 tons.

The challenge will be translating these delicate structures of beadwork, textiles and paint into four weatherproof sculptures that will gaze upon museum visitors from their plinths above Fifth Avenue.

Listing seasonal chores, such as stocking up on compost in spring and weatherproofing the irrigation system in fall, is a good reminder to attend to the more routine side of tending a landscape.