Posted tagged ‘city squirrels’

Squirrel Update: The Drey Report

December 8, 2009

Special Note: This post is now part of Scientia Pro Publica 21: Darwin’s 201st Birthday Edition. Scientia Pro Publica is a bi-monthly blog carnival dedicated to science writing that communicates to the public. Check it out! And now…The Drey Report:

Bare branches reveal dreys in Riverside Park. We counted five dreys in the Forever Wild stretch that runs between 119th Street and 116th, and six between 116th and 108th.

“That’s great,” you say. “But what’s a drey?”

See those brown blobs way up in the trees? Those are dreys. Squirrel nests.

“Huh. They don’t look like much.”

Maybe not, from the ground. But inside, inside, it’s a whole other story. At least, that’s what I hear. Lined with moss, lichen, fur and feathers, dreys are soft, inviting baskets for squirrels to spend cold winter days and nights. Some dreys even have separate compartments. At least, that’s what the Urban Park Rangers, Sunny and Sheridan, told me. I’m not sure exactly what it means, but I’m guessing it’s something like a Manhattan studio apartment.

500 Square Feet of NYC Bliss

Anyway, summer dreys are loose collections of leaves and twigs, not built to last. But winter dreys, tucked securely into a fork in a tree, will withstand wind and weather.They’re high enough to be safe from ground predators, but not all the way at the top where a marauding hawk could swoop down.

Savvy squirrels maintain more than one home. That way, they can move when a nest gets wet or infested with parasites like ticks, fleas or mites. All the research says squirrels prefer tree hollows, especially in winter, but I have yet to see any tree hollow action.

The retaining wall, on the other hand, is like an animal apartment building.

No vacancy

Squirrel with entries to right and left.

Raccoon peeks out of hole at night.

Raccoons take the big apartments and squirrels squeeze into the studios.

The squirrels come and go all day, zipping in and out of holes, up and down the wall.

And at night, when the squirrels have finally gone to sleep, the raccoons emerge slowly, like jazz musicians, to start their day in the dark.


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